X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Flogin%2Flogind-dbus.c;h=f22859c7472a7234b0bed507f6822583d3ab7b7c;hp=b549552aebfcf15bca25952fc77fdef6a143deca;hb=6b1c5e6d152a584896d71a3d9ad4d3f417050045;hpb=4084669c7f802c9745bcb6bed77bdaf49ffd896d diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c index b549552ae..f22859c74 100644 --- a/src/login/logind-dbus.c +++ b/src/login/logind-dbus.c @@ -1,5 +1,3 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - /*** This file is part of systemd. @@ -36,7 +34,7 @@ #include "escape.h" #include "fd-util.h" #include "fileio-label.h" -#include "formats-util.h" +#include "format-util.h" #include "fs-util.h" #include "logind.h" #include "mkdir.h" @@ -50,10 +48,14 @@ #include "udev-util.h" #include "unit-name.h" #include "user-util.h" -//#include "utmp-wtmp.h" +#include "utmp-wtmp.h" + +/// Additional includes needed by elogind +#include "elogind-dbus.h" +//#include "update-utmp.h" int manager_get_session_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Session **ret) { - _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; + _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; Session *session; int r; @@ -88,7 +90,7 @@ int manager_get_user_from_creds(Manager *m, sd_bus_message *message, uid_t uid, assert(ret); if (uid == UID_INVALID) { - _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; + _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; /* Note that we get the owner UID of the session, not the actual client UID here! */ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds); @@ -124,7 +126,6 @@ int manager_get_seat_from_creds(Manager *m, sd_bus_message *message, const char return r; seat = session->seat; - if (!seat) return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "Session has no seat."); } else { @@ -268,6 +269,42 @@ static int property_get_docked( return sd_bus_message_append(reply, "b", manager_is_docked_or_external_displays(m)); } +static int property_get_current_sessions( + 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, "t", (uint64_t) hashmap_size(m->sessions)); +} + +static int property_get_current_inhibitors( + 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, "t", (uint64_t) hashmap_size(m->inhibitors)); +} + static int method_get_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { _cleanup_free_ char *p = NULL; Manager *m = userdata; @@ -419,7 +456,7 @@ static int method_get_seat(sd_bus_message *message, void *userdata, sd_bus_error } static int method_list_sessions(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; Manager *m = userdata; Session *session; Iterator i; @@ -461,7 +498,7 @@ static int method_list_sessions(sd_bus_message *message, void *userdata, sd_bus_ } static int method_list_users(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; Manager *m = userdata; User *user; Iterator i; @@ -501,7 +538,7 @@ static int method_list_users(sd_bus_message *message, void *userdata, sd_bus_err } static int method_list_seats(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; Manager *m = userdata; Seat *seat; Iterator i; @@ -538,7 +575,7 @@ static int method_list_seats(sd_bus_message *message, void *userdata, sd_bus_err } static int method_list_inhibitors(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; Manager *m = userdata; Inhibitor *inhibitor; Iterator i; @@ -696,7 +733,7 @@ static int method_create_session(sd_bus_message *message, void *userdata, sd_bus } if (leader == 0) { - _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; + _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds); if (r < 0) @@ -728,6 +765,9 @@ static int method_create_session(sd_bus_message *message, void *userdata, sd_bus m->seat0->positions[vtnr]->class != SESSION_GREETER) return sd_bus_error_setf(error, BUS_ERROR_SESSION_BUSY, "Already occupied by a session"); + if (hashmap_size(m->sessions) >= m->sessions_max) + return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Maximum number of sessions (%" PRIu64 ") reached, refusing further sessions.", m->sessions_max); + audit_session_from_pid(leader, &audit_id); if (audit_id > 0) { /* Keep our session IDs and the audit session IDs in sync */ @@ -834,13 +874,17 @@ static int method_create_session(sd_bus_message *message, void *userdata, sd_bus session->create_message = sd_bus_message_ref(message); - /* Here upstream systemd starts cgroups and the user systemd, - and arranges to reply asynchronously. We reply - directly. */ +#if 0 /// UNNEEDED by elogind + /* Now, let's wait until the slice unit and stuff got + * created. We send the reply back from + * session_send_create_reply(). */ +#else + /* We reply directly. */ r = session_send_create_reply(session, NULL); if (r < 0) goto fail; +#endif // 0 return 1; @@ -875,8 +919,9 @@ static int method_release_session(sd_bus_message *message, void *userdata, sd_bu if (r < 0) return r; +#if 1 /// elogind must queue this session session_add_to_gc_queue(session); - +#endif // 1 return sd_bus_reply_method_return(message, NULL); } @@ -1086,11 +1131,11 @@ static int method_terminate_seat(sd_bus_message *message, void *userdata, sd_bus static int method_set_user_linger(sd_bus_message *message, void *userdata, sd_bus_error *error) { _cleanup_free_ char *cc = NULL; Manager *m = userdata; - int b, r; + int r, b, interactive; struct passwd *pw; const char *path; uint32_t uid; - int interactive; + bool self = false; assert(message); assert(m); @@ -1100,7 +1145,7 @@ static int method_set_user_linger(sd_bus_message *message, void *userdata, sd_bu return r; if (uid == UID_INVALID) { - _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; + _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; /* Note that we get the owner UID of the session, not the actual client UID here! */ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds); @@ -1111,18 +1156,20 @@ static int method_set_user_linger(sd_bus_message *message, void *userdata, sd_bu if (r < 0) return r; + self = true; + } else if (!uid_is_valid(uid)) return -EINVAL; errno = 0; pw = getpwuid(uid); if (!pw) - return errno ? -errno : -ENOENT; + return errno > 0 ? -errno : -ENOENT; r = bus_verify_polkit_async( message, CAP_SYS_ADMIN, - "org.freedesktop.login1.set-user-linger", + self ? "org.freedesktop.login1.set-self-linger" : "org.freedesktop.login1.set-user-linger", NULL, interactive, UID_INVALID, @@ -1235,7 +1282,6 @@ static int attach_device(Manager *m, const char *seat, const char *sysfs) { return -ENOMEM; mkdir_p_label("/etc/udev/rules.d", 0755); - mac_selinux_init("/etc"); r = write_string_file_atomic_label(file, rule); if (r < 0) return r; @@ -1255,8 +1301,7 @@ static int flush_devices(Manager *m) { } else { struct dirent *de; - while ((de = readdir(d))) { - + FOREACH_DIRENT_ALL(de, d, break) { if (!dirent_is_file(de)) continue; @@ -1364,10 +1409,10 @@ static int have_multiple_sessions( return false; } +#if 0 /// elogind has its own variant in elogind-dbus.c static int bus_manager_log_shutdown( Manager *m, InhibitWhat w, -#if 0 /// elogind does not support systemd units const char *unit_name) { const char *p, *q; @@ -1394,49 +1439,19 @@ static int bus_manager_log_shutdown( p = "MESSAGE=System is shutting down"; q = NULL; } -#else - HandleAction action) { - - const char *p, *q; - - assert(m); - - if (w != INHIBIT_SHUTDOWN) - return 0; - - switch (action) { - case HANDLE_POWEROFF: - p = "MESSAGE=System is powering down."; - q = "SHUTDOWN=power-off"; - break; - case HANDLE_HALT: - p = "MESSAGE=System is halting."; - q = "SHUTDOWN=halt"; - break; - case HANDLE_REBOOT: - p = "MESSAGE=System is rebooting."; - q = "SHUTDOWN=reboot"; - break; - case HANDLE_KEXEC: - p = "MESSAGE=System is rebooting with kexec."; - q = "SHUTDOWN=kexec"; - break; - default: - p = "MESSAGE=System is shutting down."; - q = NULL; - } -#endif // 0 + if (isempty(m->wall_message)) p = strjoina(p, "."); else p = strjoina(p, " (", m->wall_message, ")."); return log_struct(LOG_NOTICE, - LOG_MESSAGE_ID(SD_MESSAGE_SHUTDOWN), + "MESSAGE_ID=" SD_MESSAGE_SHUTDOWN_STR, p, q, NULL); } +#endif // 0 static int lid_switch_ignore_handler(sd_event_source *e, uint64_t usec, void *userdata) { Manager *m = userdata; @@ -1497,60 +1512,54 @@ static void reset_scheduled_shutdown(Manager *m) { } } +#if 0 /// elogind has its own variant in elogind-dbus.c static int execute_shutdown_or_sleep( Manager *m, InhibitWhat w, - HandleAction action, + const char *unit_name, sd_bus_error *error) { -#if 0 /// elogind does not need these, we do it ourselves - _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; char *c = NULL; const char *p; -#endif // 0 int r; assert(m); assert(w >= 0); assert(w < _INHIBIT_WHAT_MAX); + assert(unit_name); - bus_manager_log_shutdown(m, w, action); + bus_manager_log_shutdown(m, w, unit_name); -#if 0 /// elogind does it directly without depending on systemd running the system if (m->shutdown_dry_run) { log_info("Running in dry run, suppressing action."); reset_scheduled_shutdown(m); } else { - r = sd_bus_call_method( - m->bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "StartUnit", - error, - &reply, - "ss", NULL, "replace-irreversibly"); -#else - r = shutdown_or_sleep(m, action); -#endif // 0 - if (r < 0) - return r; + r = sd_bus_call_method( + m->bus, + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "StartUnit", + error, + &reply, + "ss", unit_name, "replace-irreversibly"); + if (r < 0) + return r; -#if 0 /// elogind neither needs a dbus reply, nor supports systemd action jobs - r = sd_bus_message_read(reply, "o", &p); - if (r < 0) - return r; + r = sd_bus_message_read(reply, "o", &p); + if (r < 0) + return r; - c = strdup(p); - if (!c) - return -ENOMEM; + c = strdup(p); + if (!c) + return -ENOMEM; } m->action_unit = unit_name; free(m->action_job); m->action_job = c; m->action_what = w; -#endif // 0 /* Make sure the lid switch is ignored for a while */ manager_set_lid_switch_ignore(m, now(CLOCK_MONOTONIC) + m->holdoff_timeout_usec); @@ -1560,13 +1569,13 @@ static int execute_shutdown_or_sleep( int manager_dispatch_delayed(Manager *manager, bool timeout) { - _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; Inhibitor *offending = NULL; int r; assert(manager); - if ( (0 == manager->action_what) || (HANDLE_IGNORE == manager->pending_action) ) + if (manager->action_what == 0 || manager->action_job) return 0; if (manager_is_inhibited(manager, manager->action_what, INHIBIT_DELAY, NULL, false, false, 0, &offending)) { @@ -1584,19 +1593,24 @@ int manager_dispatch_delayed(Manager *manager, bool timeout) { } /* Actually do the operation */ - r = execute_shutdown_or_sleep(manager, manager->action_what, manager->pending_action, &error); + r = execute_shutdown_or_sleep(manager, manager->action_what, manager->action_unit, &error); if (r < 0) { log_warning("Failed to send delayed message: %s", bus_error_message(&error, r)); - manager->pending_action = HANDLE_IGNORE; - manager->action_what = 0; + manager->action_unit = NULL; + manager->action_what = 0; return r; } return 1; } +#endif // 0 +#if 0 /// elogind-dbus.c needs to access this static int manager_inhibit_timeout_handler( +#else +int manager_inhibit_timeout_handler( +#endif // 0 sd_event_source *s, uint64_t usec, void *userdata) { @@ -1611,10 +1625,11 @@ static int manager_inhibit_timeout_handler( return (r < 0) ? r : 0; } +#if 0 /// elogind has its own variant in elogind-dbus.c static int delay_shutdown_or_sleep( Manager *m, InhibitWhat w, - HandleAction action) { + const char *unit_name) { int r; usec_t timeout_val; @@ -1622,6 +1637,7 @@ static int delay_shutdown_or_sleep( assert(m); assert(w >= 0); assert(w < _INHIBIT_WHAT_MAX); + assert(unit_name); timeout_val = now(CLOCK_MONOTONIC) + m->inhibit_delay_max; @@ -1640,13 +1656,18 @@ static int delay_shutdown_or_sleep( return r; } - m->pending_action = action; + m->action_unit = unit_name; m->action_what = w; return 0; } +#endif // 0 +#if 0 /// elogind-dbus.c needs to access this static int send_prepare_for(Manager *m, InhibitWhat w, bool _active) { +#else +int send_prepare_for(Manager *m, InhibitWhat w, bool _active) { +#endif // 0 static const char * const signal_name[_INHIBIT_WHAT_MAX] = { [INHIBIT_SHUTDOWN] = "PrepareForShutdown", @@ -1668,9 +1689,10 @@ static int send_prepare_for(Manager *m, InhibitWhat w, bool _active) { active); } +#if 0 /// elogind has its own variant in elogind-dbus.c int bus_manager_shutdown_or_sleep_now_or_later( Manager *m, - HandleAction action, + const char *unit_name, InhibitWhat w, sd_bus_error *error) { @@ -1678,8 +1700,10 @@ int bus_manager_shutdown_or_sleep_now_or_later( int r; assert(m); + assert(unit_name); assert(w >= 0); assert(w <= _INHIBIT_WHAT_MAX); + assert(!m->action_job); /* Tell everybody to prepare for shutdown/sleep */ send_prepare_for(m, w, true); @@ -1688,19 +1712,27 @@ int bus_manager_shutdown_or_sleep_now_or_later( m->inhibit_delay_max > 0 && manager_is_inhibited(m, w, INHIBIT_DELAY, NULL, false, false, 0, NULL); + log_debug_elogind("%s called for %s (%sdelayed)", __FUNCTION__, + handle_action_to_string(action), + delayed ? "" : "NOT "); if (delayed) /* Shutdown is delayed, keep in mind what we * want to do, and start a timeout */ - r = delay_shutdown_or_sleep(m, w, action); + r = delay_shutdown_or_sleep(m, w, unit_name); else /* Shutdown is not delayed, execute it * immediately */ - r = execute_shutdown_or_sleep(m, w, action, error); + r = execute_shutdown_or_sleep(m, w, unit_name, error); return r; } +#endif // 0 +#if 0 /// elogind-dbus.c needs to access this static int verify_shutdown_creds( +#else +int verify_shutdown_creds( +#endif // 0 Manager *m, sd_bus_message *message, InhibitWhat w, @@ -1710,7 +1742,7 @@ static int verify_shutdown_creds( const char *action_ignore_inhibit, sd_bus_error *error) { - _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; + _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; bool multiple_sessions, blocked; uid_t uid; int r; @@ -1762,10 +1794,11 @@ static int verify_shutdown_creds( return 0; } +#if 0 /// elogind has its own variant in elogind-dbus.c static int method_do_shutdown_or_sleep( Manager *m, sd_bus_message *message, - HandleAction sleep_action, + const char *unit_name, InhibitWhat w, const char *action, const char *action_multiple_sessions, @@ -1777,6 +1810,7 @@ static int method_do_shutdown_or_sleep( assert(m); assert(message); + assert(unit_name); assert(w >= 0); assert(w <= _INHIBIT_WHAT_MAX); @@ -1784,6 +1818,9 @@ static int method_do_shutdown_or_sleep( if (r < 0) return r; + log_debug_elogind("%s called with action '%s', sleep '%s' (%sinteractive)", + __FUNCTION__, action, sleep_verb, + interactive ? "" : "NOT "); /* Don't allow multiple jobs being executed at the same time */ if (m->action_what) return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "There's already a shutdown or sleep operation in progress"); @@ -1799,10 +1836,11 @@ static int method_do_shutdown_or_sleep( r = verify_shutdown_creds(m, message, w, interactive, action, action_multiple_sessions, action_ignore_inhibit, error); + log_debug_elogind("verify_shutdown_creds() returned %d", r); if (r != 0) return r; - r = bus_manager_shutdown_or_sleep_now_or_later(m, sleep_action, w, error); + r = bus_manager_shutdown_or_sleep_now_or_later(m, unit_name, w, error); if (r < 0) return r; @@ -1812,9 +1850,10 @@ static int method_do_shutdown_or_sleep( static int method_poweroff(sd_bus_message *message, void *userdata, sd_bus_error *error) { Manager *m = userdata; + log_debug_elogind("%s called", __FUNCTION__); return method_do_shutdown_or_sleep( m, message, - HANDLE_POWEROFF, + SPECIAL_POWEROFF_TARGET, INHIBIT_SHUTDOWN, "org.freedesktop.login1.power-off", "org.freedesktop.login1.power-off-multiple-sessions", @@ -1826,9 +1865,10 @@ static int method_poweroff(sd_bus_message *message, void *userdata, sd_bus_error static int method_reboot(sd_bus_message *message, void *userdata, sd_bus_error *error) { Manager *m = userdata; + log_debug_elogind("%s called", __FUNCTION__); return method_do_shutdown_or_sleep( m, message, - HANDLE_REBOOT, + SPECIAL_REBOOT_TARGET, INHIBIT_SHUTDOWN, "org.freedesktop.login1.reboot", "org.freedesktop.login1.reboot-multiple-sessions", @@ -1840,9 +1880,10 @@ static int method_reboot(sd_bus_message *message, void *userdata, sd_bus_error * static int method_suspend(sd_bus_message *message, void *userdata, sd_bus_error *error) { Manager *m = userdata; + log_debug_elogind("%s called", __FUNCTION__); return method_do_shutdown_or_sleep( m, message, - HANDLE_SUSPEND, + SPECIAL_SUSPEND_TARGET, INHIBIT_SLEEP, "org.freedesktop.login1.suspend", "org.freedesktop.login1.suspend-multiple-sessions", @@ -1850,6 +1891,7 @@ static int method_suspend(sd_bus_message *message, void *userdata, sd_bus_error "suspend", error); } +#endif // 0 static int nologin_timeout_handler( sd_event_source *s, @@ -1861,7 +1903,7 @@ static int nologin_timeout_handler( log_info("Creating /run/nologin, blocking further logins..."); - r = write_string_file("/run/nologin", "System is going down.", WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_ATOMIC); + r = write_string_file_atomic_label("/run/nologin", "System is going down."); if (r < 0) log_error_errno(r, "Failed to create /run/nologin: %m"); else @@ -1919,20 +1961,21 @@ static int update_schedule_file(Manager *m) { return 0; fail: - (void) unlink(temp_path); - (void) unlink("/run/systemd/shutdown/scheduled"); + (void) unlink(temp_path); + (void) unlink("/run/systemd/shutdown/scheduled"); return log_error_errno(r, "Failed to write information about scheduled shutdowns: %m"); } +#if 0 /// elogind has its own variant in elogind-dbus.c static int manager_scheduled_shutdown_handler( sd_event_source *s, uint64_t usec, void *userdata) { - _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; Manager *m = userdata; - HandleAction action; + const char *target; int r; assert(m); @@ -1941,22 +1984,23 @@ static int manager_scheduled_shutdown_handler( return 0; if (streq(m->scheduled_shutdown_type, "halt")) - action = HANDLE_HALT; + target = SPECIAL_HALT_TARGET; else if (streq(m->scheduled_shutdown_type, "poweroff")) - action = HANDLE_POWEROFF; + target = SPECIAL_POWEROFF_TARGET; else - action = HANDLE_REBOOT; + target = SPECIAL_REBOOT_TARGET; - r = execute_shutdown_or_sleep(m, 0, action, &error); + r = execute_shutdown_or_sleep(m, 0, target, &error); if (r < 0) - return log_error_errno(r, "Unable to execute transition to %s: %m", m->scheduled_shutdown_type); + return log_error_errno(r, "Unable to execute transition to %s: %m", target); return 0; } +#endif // 0 static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_bus_error *error) { Manager *m = userdata; - _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; + _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; const char *action_multiple_sessions = NULL; const char *action_ignore_inhibit = NULL; const char *action = NULL; @@ -1967,6 +2011,7 @@ static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_ assert(m); assert(message); + log_debug_elogind("%s called", __FUNCTION__); r = sd_bus_message_read(message, "st", &type, &elapse); if (r < 0) return r; @@ -1985,9 +2030,9 @@ static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_ action_multiple_sessions = "org.freedesktop.login1.halt-multiple-sessions"; action_ignore_inhibit = "org.freedesktop.login1.halt-ignore-inhibit"; } else if (streq(type, "poweroff")) { - action = "org.freedesktop.login1.poweroff"; - action_multiple_sessions = "org.freedesktop.login1.poweroff-multiple-sessions"; - action_ignore_inhibit = "org.freedesktop.login1.poweroff-ignore-inhibit"; + action = "org.freedesktop.login1.power-off"; + action_multiple_sessions = "org.freedesktop.login1.power-off-multiple-sessions"; + action_ignore_inhibit = "org.freedesktop.login1.power-off-ignore-inhibit"; } else return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unsupported shutdown type"); @@ -2036,7 +2081,7 @@ static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_AUGMENT|SD_BUS_CREDS_TTY|SD_BUS_CREDS_UID, &creds); if (r >= 0) { - const char *tty; + const char *tty = NULL; (void) sd_bus_creds_get_uid(creds, &m->scheduled_shutdown_uid); (void) sd_bus_creds_get_tty(creds, &tty); @@ -2048,11 +2093,9 @@ static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_ } } -#if 0 /// elogind does not support utmp-wtmp r = manager_setup_wall_message_timer(m); if (r < 0) return r; -#endif // 0 if (!isempty(type)) { r = update_schedule_file(m); @@ -2067,16 +2110,19 @@ static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_ static int method_cancel_scheduled_shutdown(sd_bus_message *message, void *userdata, sd_bus_error *error) { Manager *m = userdata; bool cancelled; +#if 1 /// elogind needs to construct the message to allow extra wall messages + _cleanup_free_ char *l = NULL; +#endif // 1 assert(m); assert(message); + log_debug_elogind("%s called", __FUNCTION__); cancelled = m->scheduled_shutdown_type != NULL; reset_scheduled_shutdown(m); -#if 0 /// elogind does not support utmp-wtmp if (cancelled) { - _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; + _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; const char *tty = NULL; uid_t uid = 0; int r; @@ -2087,20 +2133,33 @@ static int method_cancel_scheduled_shutdown(sd_bus_message *message, void *userd (void) sd_bus_creds_get_tty(creds, &tty); } +#if 0 /// elogind wants to allow extra cancellation messages utmp_wall("The system shutdown has been cancelled", uid_to_name(uid), tty, logind_wall_tty_filter, m); - } +#else + r = asprintf(&l, "%s%sThe system shutdown has been cancelled!", + strempty(m->wall_message), + isempty(m->wall_message) ? "" : "\n"); + if (r < 0) { + log_oom(); + return 0; + } + + utmp_wall(l, uid_to_name(uid), tty, logind_wall_tty_filter, m); #endif // 0 + } return sd_bus_reply_method_return(message, "b", cancelled); } +#if 0 /// elogind has its own variant in elogind-dbus.c static int method_hibernate(sd_bus_message *message, void *userdata, sd_bus_error *error) { Manager *m = userdata; + log_debug_elogind("%s called", __FUNCTION__); return method_do_shutdown_or_sleep( m, message, - HANDLE_HIBERNATE, + SPECIAL_HIBERNATE_TARGET, INHIBIT_SLEEP, "org.freedesktop.login1.hibernate", "org.freedesktop.login1.hibernate-multiple-sessions", @@ -2112,9 +2171,10 @@ static int method_hibernate(sd_bus_message *message, void *userdata, sd_bus_erro static int method_hybrid_sleep(sd_bus_message *message, void *userdata, sd_bus_error *error) { Manager *m = userdata; + log_debug_elogind("%s called", __FUNCTION__); return method_do_shutdown_or_sleep( m, message, - HANDLE_HYBRID_SLEEP, + SPECIAL_HYBRID_SLEEP_TARGET, INHIBIT_SLEEP, "org.freedesktop.login1.hibernate", "org.freedesktop.login1.hibernate-multiple-sessions", @@ -2122,6 +2182,7 @@ static int method_hybrid_sleep(sd_bus_message *message, void *userdata, sd_bus_e "hybrid-sleep", error); } +#endif // 0 static int method_can_shutdown_or_sleep( Manager *m, @@ -2133,7 +2194,7 @@ static int method_can_shutdown_or_sleep( const char *sleep_verb, sd_bus_error *error) { - _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; + _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; bool multiple_sessions, challenge, blocked; const char *result = NULL; uid_t uid; @@ -2148,7 +2209,11 @@ static int method_can_shutdown_or_sleep( assert(action_ignore_inhibit); if (sleep_verb) { +#if 0 /// elogind needs to have the manager being passed r = can_sleep(sleep_verb); +#else + r = can_sleep(m, sleep_verb); +#endif // 0 if (r < 0) return r; if (r == 0) @@ -2301,7 +2366,7 @@ static int property_get_reboot_to_firmware_setup( return sd_bus_message_append(reply, "b", r > 0); #else - return sd_bus_message_append(reply, "b", -EOPNOTSUPP); + return sd_bus_message_append(reply, "b", false); #endif // 0 } @@ -2381,7 +2446,7 @@ static int method_can_reboot_to_firmware_setup( return sd_bus_reply_method_return(message, "s", result); #else - return sd_bus_reply_method_return(message, "s", "na"); + return sd_bus_reply_method_return(message, "s", "no"); #endif // 0 } @@ -2402,6 +2467,7 @@ static int method_set_wall_message( if (r < 0) return r; +#if 0 /// elogind only calls this for shutdown/reboot, which already needs authorization. r = bus_verify_polkit_async(message, CAP_SYS_ADMIN, "org.freedesktop.login1.set-wall-message", @@ -2414,14 +2480,11 @@ static int method_set_wall_message( return r; if (r == 0) return 1; /* Will call us back */ +#endif // 0 - if (isempty(wall_message)) - m->wall_message = mfree(m->wall_message); - else { - r = free_and_strdup(&m->wall_message, wall_message); - if (r < 0) - return log_oom(); - } + r = free_and_strdup(&m->wall_message, empty_to_null(wall_message)); + if (r < 0) + return log_oom(); m->enable_wall_messages = enable_wall_messages; @@ -2429,7 +2492,7 @@ static int method_set_wall_message( } static int method_inhibit(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; + _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; const char *who, *why, *what, *mode; _cleanup_free_ char *id = NULL; _cleanup_close_ int fifo_fd = -1; @@ -2499,6 +2562,9 @@ static int method_inhibit(sd_bus_message *message, void *userdata, sd_bus_error if (r < 0) return r; + if (hashmap_size(m->inhibitors) >= m->inhibitors_max) + return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Maximum number of inhibitors (%" PRIu64 ") reached, refusing further inhibitors.", m->inhibitors_max); + do { id = mfree(id); @@ -2546,7 +2612,9 @@ const sd_bus_vtable manager_vtable[] = { SD_BUS_WRITABLE_PROPERTY("EnableWallMessages", "b", NULL, NULL, offsetof(Manager, enable_wall_messages), 0), SD_BUS_WRITABLE_PROPERTY("WallMessage", "s", NULL, NULL, offsetof(Manager, wall_message), 0), -// SD_BUS_PROPERTY("NAutoVTs", "u", NULL, offsetof(Manager, n_autovts), SD_BUS_VTABLE_PROPERTY_CONST), +#if 0 /// UNNEEDED by elogind + SD_BUS_PROPERTY("NAutoVTs", "u", NULL, offsetof(Manager, n_autovts), SD_BUS_VTABLE_PROPERTY_CONST), +#endif // 0 SD_BUS_PROPERTY("KillOnlyUsers", "as", NULL, offsetof(Manager, kill_only_users), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("KillExcludeUsers", "as", NULL, offsetof(Manager, kill_exclude_users), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("KillUserProcesses", "b", NULL, offsetof(Manager, kill_user_processes), SD_BUS_VTABLE_PROPERTY_CONST), @@ -2569,6 +2637,13 @@ const sd_bus_vtable manager_vtable[] = { 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_PROPERTY("RemoveIPC", "b", bus_property_get_bool, offsetof(Manager, remove_ipc), SD_BUS_VTABLE_PROPERTY_CONST), + SD_BUS_PROPERTY("RuntimeDirectorySize", "t", bus_property_get_size, offsetof(Manager, runtime_dir_size), SD_BUS_VTABLE_PROPERTY_CONST), + SD_BUS_PROPERTY("InhibitorsMax", "t", NULL, offsetof(Manager, inhibitors_max), SD_BUS_VTABLE_PROPERTY_CONST), + SD_BUS_PROPERTY("NCurrentInhibitors", "t", property_get_current_inhibitors, 0, 0), + SD_BUS_PROPERTY("SessionsMax", "t", NULL, offsetof(Manager, sessions_max), SD_BUS_VTABLE_PROPERTY_CONST), + SD_BUS_PROPERTY("NCurrentSessions", "t", property_get_current_sessions, 0, 0), + SD_BUS_PROPERTY("UserTasksMax", "t", NULL, offsetof(Manager, user_tasks_max), SD_BUS_VTABLE_PROPERTY_CONST), 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), @@ -2637,7 +2712,7 @@ static int session_jobs_reply(Session *s, const char *unit, const char *result) if (streq(result, "done")) r = session_send_create_reply(s, NULL); else { - _cleanup_bus_error_free_ sd_bus_error e = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_error_free) sd_bus_error e = SD_BUS_ERROR_NULL; sd_bus_error_setf(&e, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result); r = session_send_create_reply(s, &e); @@ -2810,6 +2885,23 @@ int manager_send_changed(Manager *manager, const char *property, ...) { } #if 0 /// UNNEEDED by elogind +static int strdup_job(sd_bus_message *reply, char **job) { + const char *j; + char *copy; + int r; + + r = sd_bus_message_read(reply, "o", &j); + if (r < 0) + return r; + + copy = strdup(j); + if (!copy) + return -ENOMEM; + + *job = copy; + return 1; +} + int manager_start_slice( Manager *manager, const char *slice, @@ -2820,11 +2912,12 @@ int manager_start_slice( sd_bus_error *error, char **job) { - _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL; int r; assert(manager); assert(slice); + assert(job); r = sd_bus_message_new_method_call( manager->bus, @@ -2878,22 +2971,7 @@ int manager_start_slice( if (r < 0) return r; - if (job) { - const char *j; - char *copy; - - r = sd_bus_message_read(reply, "o", &j); - if (r < 0) - return r; - - copy = strdup(j); - if (!copy) - return -ENOMEM; - - *job = copy; - } - - return 1; + return strdup_job(reply, job); } int manager_start_scope( @@ -2908,12 +2986,13 @@ int manager_start_scope( sd_bus_error *error, char **job) { - _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL; int r; assert(manager); assert(scope); assert(pid > 1); + assert(job); r = sd_bus_message_new_method_call( manager->bus, @@ -2988,30 +3067,16 @@ int manager_start_scope( if (r < 0) return r; - if (job) { - const char *j; - char *copy; - - r = sd_bus_message_read(reply, "o", &j); - if (r < 0) - return r; - - copy = strdup(j); - if (!copy) - return -ENOMEM; - - *job = copy; - } - - return 1; + return strdup_job(reply, job); } int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) { - _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; int r; assert(manager); assert(unit); + assert(job); r = sd_bus_call_method( manager->bus, @@ -3025,30 +3090,16 @@ int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, if (r < 0) return r; - if (job) { - const char *j; - char *copy; - - r = sd_bus_message_read(reply, "o", &j); - if (r < 0) - return r; - - copy = strdup(j); - if (!copy) - return -ENOMEM; - - *job = copy; - } - - return 1; + return strdup_job(reply, job); } int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) { - _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; int r; assert(manager); assert(unit); + assert(job); r = sd_bus_call_method( manager->bus, @@ -3063,9 +3114,7 @@ int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, c if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) || sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED)) { - if (job) - *job = NULL; - + *job = NULL; sd_bus_error_free(error); return 0; } @@ -3073,22 +3122,7 @@ int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, c return r; } - if (job) { - const char *j; - char *copy; - - r = sd_bus_message_read(reply, "o", &j); - if (r < 0) - return r; - - copy = strdup(j); - if (!copy) - return -ENOMEM; - - *job = copy; - } - - return 1; + return strdup_job(reply, job); } int manager_abandon_scope(Manager *manager, const char *scope, sd_bus_error *error) { @@ -3141,8 +3175,8 @@ int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo } int manager_unit_is_active(Manager *manager, const char *unit) { - _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_free_ char *path = NULL; const char *state; int r; @@ -3187,8 +3221,8 @@ int manager_unit_is_active(Manager *manager, const char *unit) { } int manager_job_is_active(Manager *manager, const char *path) { - _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; int r; assert(manager); @@ -3219,4 +3253,4 @@ int manager_job_is_active(Manager *manager, const char *path) { return true; } -#endif // +#endif // 0