| /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| |
| #include <errno.h> |
| #include <sys/stat.h> |
| #include <unistd.h> |
| |
| #include "sd-device.h" |
| #include "sd-messages.h" |
| |
| #include "alloc-util.h" |
| #include "audit-util.h" |
| #include "bootspec.h" |
| #include "bus-common-errors.h" |
| #include "bus-error.h" |
| #include "bus-get-properties.h" |
| #include "bus-locator.h" |
| #include "bus-polkit.h" |
| #include "bus-unit-util.h" |
| #include "bus-util.h" |
| #include "cgroup-util.h" |
| #include "device-util.h" |
| #include "dirent-util.h" |
| #include "efi-api.h" |
| #include "efi-loader.h" |
| #include "efivars.h" |
| #include "env-file.h" |
| #include "env-util.h" |
| #include "escape.h" |
| #include "event-util.h" |
| #include "fd-util.h" |
| #include "fileio-label.h" |
| #include "fileio.h" |
| #include "format-util.h" |
| #include "fs-util.h" |
| #include "logind-action.h" |
| #include "logind-dbus.h" |
| #include "logind-polkit.h" |
| #include "logind-seat-dbus.h" |
| #include "logind-session-dbus.h" |
| #include "logind-user-dbus.h" |
| #include "logind.h" |
| #include "missing_capability.h" |
| #include "mkdir-label.h" |
| #include "parse-util.h" |
| #include "path-util.h" |
| #include "process-util.h" |
| #include "reboot-util.h" |
| #include "selinux-util.h" |
| #include "sleep-config.h" |
| #include "special.h" |
| #include "serialize.h" |
| #include "stdio-util.h" |
| #include "strv.h" |
| #include "terminal-util.h" |
| #include "tmpfile-util.h" |
| #include "unit-name.h" |
| #include "user-util.h" |
| #include "utmp-wtmp.h" |
| #include "virt.h" |
| |
| /* As a random fun fact sysvinit had a 252 (256-(strlen(" \r\n")+1)) |
| * character limit for the wall message. |
| * https://git.savannah.nongnu.org/cgit/sysvinit.git/tree/src/shutdown.c#n72 |
| * There is no real technical need for that but doesn't make sense |
| * to store arbitrary amounts either. As we are not stingy here, we |
| * allow 4k. |
| */ |
| #define WALL_MESSAGE_MAX 4096U |
| |
| #define SHUTDOWN_SCHEDULE_FILE "/run/systemd/shutdown/scheduled" |
| |
| static int update_schedule_file(Manager *m); |
| static void reset_scheduled_shutdown(Manager *m); |
| static int manager_setup_shutdown_timers(Manager* m); |
| |
| static int get_sender_session( |
| Manager *m, |
| sd_bus_message *message, |
| bool consult_display, |
| sd_bus_error *error, |
| Session **ret) { |
| |
| _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
| Session *session = NULL; |
| const char *name; |
| int r; |
| |
| /* Acquire the sender's session. This first checks if the sending process is inside a session itself, |
| * and returns that. If not and 'consult_display' is true, this returns the display session of the |
| * owning user of the caller. */ |
| |
| r = sd_bus_query_sender_creds(message, |
| SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT| |
| (consult_display ? SD_BUS_CREDS_OWNER_UID : 0), &creds); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_creds_get_session(creds, &name); |
| if (r < 0) { |
| if (r != -ENXIO) |
| return r; |
| |
| if (consult_display) { |
| uid_t uid; |
| |
| r = sd_bus_creds_get_owner_uid(creds, &uid); |
| if (r < 0) { |
| if (r != -ENXIO) |
| return r; |
| } else { |
| User *user; |
| |
| user = hashmap_get(m->users, UID_TO_PTR(uid)); |
| if (user) |
| session = user->display; |
| } |
| } |
| } else |
| session = hashmap_get(m->sessions, name); |
| |
| if (!session) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SESSION_FOR_PID, |
| consult_display ? |
| "Caller does not belong to any known session and doesn't own any suitable session." : |
| "Caller does not belong to any known session."); |
| |
| *ret = session; |
| return 0; |
| } |
| |
| int manager_get_session_from_creds( |
| Manager *m, |
| sd_bus_message *message, |
| const char *name, |
| sd_bus_error *error, |
| Session **ret) { |
| |
| Session *session; |
| |
| assert(m); |
| assert(ret); |
| |
| if (SEAT_IS_SELF(name)) /* the caller's own session */ |
| return get_sender_session(m, message, false, error, ret); |
| if (SEAT_IS_AUTO(name)) /* The caller's own session if they have one, otherwise their user's display session */ |
| return get_sender_session(m, message, true, error, ret); |
| |
| session = hashmap_get(m->sessions, name); |
| if (!session) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name); |
| |
| *ret = session; |
| return 0; |
| } |
| |
| static int get_sender_user(Manager *m, sd_bus_message *message, sd_bus_error *error, User **ret) { |
| _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
| uid_t uid; |
| User *user; |
| int r; |
| |
| /* 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); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_creds_get_owner_uid(creds, &uid); |
| if (r < 0) { |
| if (r != -ENXIO) |
| return r; |
| |
| user = NULL; |
| } else |
| user = hashmap_get(m->users, UID_TO_PTR(uid)); |
| |
| if (!user) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_USER_FOR_PID, |
| "Caller does not belong to any logged in or lingering user"); |
| |
| *ret = user; |
| return 0; |
| } |
| |
| int manager_get_user_from_creds(Manager *m, sd_bus_message *message, uid_t uid, sd_bus_error *error, User **ret) { |
| User *user; |
| |
| assert(m); |
| assert(ret); |
| |
| if (!uid_is_valid(uid)) |
| return get_sender_user(m, message, error, ret); |
| |
| user = hashmap_get(m->users, UID_TO_PTR(uid)); |
| if (!user) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER, |
| "User ID "UID_FMT" is not logged in or lingering", uid); |
| |
| *ret = user; |
| return 0; |
| } |
| |
| int manager_get_seat_from_creds( |
| Manager *m, |
| sd_bus_message *message, |
| const char *name, |
| sd_bus_error *error, |
| Seat **ret) { |
| |
| Seat *seat; |
| int r; |
| |
| assert(m); |
| assert(ret); |
| |
| if (SEAT_IS_SELF(name) || SEAT_IS_AUTO(name)) { |
| Session *session; |
| |
| /* Use these special seat names as session names */ |
| r = manager_get_session_from_creds(m, message, name, error, &session); |
| if (r < 0) |
| return r; |
| |
| seat = session->seat; |
| if (!seat) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "Session '%s' has no seat.", session->id); |
| } else { |
| seat = hashmap_get(m->seats, name); |
| if (!seat) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", name); |
| } |
| |
| *ret = seat; |
| return 0; |
| } |
| |
| static int return_test_polkit( |
| sd_bus_message *message, |
| int capability, |
| const char *action, |
| const char **details, |
| uid_t good_user, |
| sd_bus_error *e) { |
| |
| const char *result; |
| bool challenge; |
| int r; |
| |
| r = bus_test_polkit(message, capability, action, details, good_user, &challenge, e); |
| if (r < 0) |
| return r; |
| |
| if (r > 0) |
| result = "yes"; |
| else if (challenge) |
| result = "challenge"; |
| else |
| result = "no"; |
| |
| return sd_bus_reply_method_return(message, "s", result); |
| } |
| |
| static int property_get_idle_hint( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Manager *m = ASSERT_PTR(userdata); |
| |
| assert(bus); |
| assert(reply); |
| |
| return sd_bus_message_append(reply, "b", manager_get_idle_hint(m, NULL) > 0); |
| } |
| |
| static int property_get_idle_since_hint( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Manager *m = ASSERT_PTR(userdata); |
| dual_timestamp t = DUAL_TIMESTAMP_NULL; |
| |
| assert(bus); |
| assert(reply); |
| |
| manager_get_idle_hint(m, &t); |
| |
| return sd_bus_message_append(reply, "t", streq(property, "IdleSinceHint") ? t.realtime : t.monotonic); |
| } |
| |
| static int property_get_inhibited( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Manager *m = ASSERT_PTR(userdata); |
| InhibitWhat w; |
| |
| assert(bus); |
| assert(reply); |
| |
| w = manager_inhibit_what(m, streq(property, "BlockInhibited") ? INHIBIT_BLOCK : INHIBIT_DELAY); |
| |
| return sd_bus_message_append(reply, "s", inhibit_what_to_string(w)); |
| } |
| |
| static int property_get_preparing( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Manager *m = ASSERT_PTR(userdata); |
| bool b = false; |
| |
| assert(bus); |
| assert(reply); |
| |
| if (m->delayed_action) { |
| if (streq(property, "PreparingForShutdown")) |
| b = m->delayed_action->inhibit_what & INHIBIT_SHUTDOWN; |
| else |
| b = m->delayed_action->inhibit_what & INHIBIT_SLEEP; |
| } |
| |
| return sd_bus_message_append(reply, "b", b); |
| } |
| |
| static int property_get_scheduled_shutdown( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Manager *m = ASSERT_PTR(userdata); |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| |
| r = sd_bus_message_open_container(reply, 'r', "st"); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_append(reply, "st", |
| m->scheduled_shutdown_action ? handle_action_to_string(m->scheduled_shutdown_action->handle) : NULL, |
| m->scheduled_shutdown_timeout); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_message_close_container(reply); |
| } |
| |
| static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_handle_action, handle_action, HandleAction); |
| static BUS_DEFINE_PROPERTY_GET(property_get_docked, "b", Manager, manager_is_docked_or_external_displays); |
| static BUS_DEFINE_PROPERTY_GET(property_get_lid_closed, "b", Manager, manager_is_lid_closed); |
| static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_on_external_power, "b", manager_is_on_external_power()); |
| static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_compat_user_tasks_max, "t", CGROUP_LIMIT_MAX); |
| static BUS_DEFINE_PROPERTY_GET_REF(property_get_hashmap_size, "t", Hashmap *, (uint64_t) hashmap_size); |
| |
| static int method_get_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_free_ char *p = NULL; |
| Manager *m = ASSERT_PTR(userdata); |
| const char *name; |
| Session *session; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| r = manager_get_session_from_creds(m, message, name, error, &session); |
| if (r < 0) |
| return r; |
| |
| p = session_bus_path(session); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_reply_method_return(message, "o", p); |
| } |
| |
| /* Get login session of a process. This is not what you are looking for these days, |
| * as apps may instead belong to a user service unit. This includes terminal |
| * emulators and hence command-line apps. */ |
| static int method_get_session_by_pid(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_free_ char *p = NULL; |
| Session *session = NULL; |
| Manager *m = ASSERT_PTR(userdata); |
| pid_t pid; |
| int r; |
| |
| assert(message); |
| |
| assert_cc(sizeof(pid_t) == sizeof(uint32_t)); |
| |
| r = sd_bus_message_read(message, "u", &pid); |
| if (r < 0) |
| return r; |
| if (pid < 0) |
| return -EINVAL; |
| |
| if (pid == 0) { |
| r = manager_get_session_from_creds(m, message, NULL, error, &session); |
| if (r < 0) |
| return r; |
| } else { |
| r = manager_get_session_by_pid(m, pid, &session); |
| if (r < 0) |
| return r; |
| |
| if (!session) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SESSION_FOR_PID, |
| "PID "PID_FMT" does not belong to any known session", pid); |
| } |
| |
| p = session_bus_path(session); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_reply_method_return(message, "o", p); |
| } |
| |
| static int method_get_user(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_free_ char *p = NULL; |
| Manager *m = ASSERT_PTR(userdata); |
| uint32_t uid; |
| User *user; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "u", &uid); |
| if (r < 0) |
| return r; |
| |
| r = manager_get_user_from_creds(m, message, uid, error, &user); |
| if (r < 0) |
| return r; |
| |
| p = user_bus_path(user); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_reply_method_return(message, "o", p); |
| } |
| |
| static int method_get_user_by_pid(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_free_ char *p = NULL; |
| Manager *m = ASSERT_PTR(userdata); |
| User *user = NULL; |
| pid_t pid; |
| int r; |
| |
| assert(message); |
| |
| assert_cc(sizeof(pid_t) == sizeof(uint32_t)); |
| |
| r = sd_bus_message_read(message, "u", &pid); |
| if (r < 0) |
| return r; |
| if (pid < 0) |
| return -EINVAL; |
| |
| if (pid == 0) { |
| r = manager_get_user_from_creds(m, message, UID_INVALID, error, &user); |
| if (r < 0) |
| return r; |
| } else { |
| r = manager_get_user_by_pid(m, pid, &user); |
| if (r < 0) |
| return r; |
| if (!user) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_USER_FOR_PID, |
| "PID "PID_FMT" does not belong to any logged in user or lingering user", |
| pid); |
| } |
| |
| p = user_bus_path(user); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_reply_method_return(message, "o", p); |
| } |
| |
| static int method_get_seat(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_free_ char *p = NULL; |
| Manager *m = ASSERT_PTR(userdata); |
| const char *name; |
| Seat *seat; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| r = manager_get_seat_from_creds(m, message, name, error, &seat); |
| if (r < 0) |
| return r; |
| |
| p = seat_bus_path(seat); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_reply_method_return(message, "o", p); |
| } |
| |
| static int method_list_sessions(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
| Manager *m = ASSERT_PTR(userdata); |
| Session *session; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_new_method_return(message, &reply); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_open_container(reply, 'a', "(susso)"); |
| if (r < 0) |
| return r; |
| |
| HASHMAP_FOREACH(session, m->sessions) { |
| _cleanup_free_ char *p = NULL; |
| |
| p = session_bus_path(session); |
| if (!p) |
| return -ENOMEM; |
| |
| r = sd_bus_message_append(reply, "(susso)", |
| session->id, |
| (uint32_t) session->user->user_record->uid, |
| session->user->user_record->user_name, |
| session->seat ? session->seat->id : "", |
| p); |
| if (r < 0) |
| return r; |
| } |
| |
| r = sd_bus_message_close_container(reply); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_send(NULL, reply, NULL); |
| } |
| |
| static int method_list_users(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
| Manager *m = ASSERT_PTR(userdata); |
| User *user; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_new_method_return(message, &reply); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_open_container(reply, 'a', "(uso)"); |
| if (r < 0) |
| return r; |
| |
| HASHMAP_FOREACH(user, m->users) { |
| _cleanup_free_ char *p = NULL; |
| |
| p = user_bus_path(user); |
| if (!p) |
| return -ENOMEM; |
| |
| r = sd_bus_message_append(reply, "(uso)", |
| (uint32_t) user->user_record->uid, |
| user->user_record->user_name, |
| p); |
| if (r < 0) |
| return r; |
| } |
| |
| r = sd_bus_message_close_container(reply); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_send(NULL, reply, NULL); |
| } |
| |
| static int method_list_seats(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
| Manager *m = ASSERT_PTR(userdata); |
| Seat *seat; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_new_method_return(message, &reply); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_open_container(reply, 'a', "(so)"); |
| if (r < 0) |
| return r; |
| |
| HASHMAP_FOREACH(seat, m->seats) { |
| _cleanup_free_ char *p = NULL; |
| |
| p = seat_bus_path(seat); |
| if (!p) |
| return -ENOMEM; |
| |
| r = sd_bus_message_append(reply, "(so)", seat->id, p); |
| if (r < 0) |
| return r; |
| } |
| |
| r = sd_bus_message_close_container(reply); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_send(NULL, reply, NULL); |
| } |
| |
| static int method_list_inhibitors(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
| Manager *m = ASSERT_PTR(userdata); |
| Inhibitor *inhibitor; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_new_method_return(message, &reply); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_open_container(reply, 'a', "(ssssuu)"); |
| if (r < 0) |
| return r; |
| |
| HASHMAP_FOREACH(inhibitor, m->inhibitors) { |
| |
| r = sd_bus_message_append(reply, "(ssssuu)", |
| strempty(inhibit_what_to_string(inhibitor->what)), |
| strempty(inhibitor->who), |
| strempty(inhibitor->why), |
| strempty(inhibit_mode_to_string(inhibitor->mode)), |
| (uint32_t) inhibitor->uid, |
| (uint32_t) inhibitor->pid); |
| if (r < 0) |
| return r; |
| } |
| |
| r = sd_bus_message_close_container(reply); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_send(NULL, reply, NULL); |
| } |
| |
| static int method_create_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| const char *service, *type, *class, *cseat, *tty, *display, *remote_user, *remote_host, *desktop; |
| _cleanup_free_ char *id = NULL; |
| Session *session = NULL; |
| uint32_t audit_id = 0; |
| Manager *m = ASSERT_PTR(userdata); |
| User *user = NULL; |
| Seat *seat = NULL; |
| pid_t leader; |
| uid_t uid; |
| int remote; |
| uint32_t vtnr = 0; |
| SessionType t; |
| SessionClass c; |
| int r; |
| |
| assert(message); |
| |
| assert_cc(sizeof(pid_t) == sizeof(uint32_t)); |
| assert_cc(sizeof(uid_t) == sizeof(uint32_t)); |
| |
| r = sd_bus_message_read(message, "uusssssussbss", |
| &uid, &leader, &service, &type, &class, &desktop, &cseat, |
| &vtnr, &tty, &display, &remote, &remote_user, &remote_host); |
| if (r < 0) |
| return r; |
| |
| if (!uid_is_valid(uid)) |
| return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid UID"); |
| if (leader < 0 || leader == 1 || leader == getpid_cached()) |
| return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID"); |
| |
| if (isempty(type)) |
| t = _SESSION_TYPE_INVALID; |
| else { |
| t = session_type_from_string(type); |
| if (t < 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Invalid session type %s", type); |
| } |
| |
| if (isempty(class)) |
| c = _SESSION_CLASS_INVALID; |
| else { |
| c = session_class_from_string(class); |
| if (c < 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Invalid session class %s", class); |
| } |
| |
| if (isempty(desktop)) |
| desktop = NULL; |
| else { |
| if (!string_is_safe(desktop)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Invalid desktop string %s", desktop); |
| } |
| |
| if (isempty(cseat)) |
| seat = NULL; |
| else { |
| seat = hashmap_get(m->seats, cseat); |
| if (!seat) |
| return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, |
| "No seat '%s' known", cseat); |
| } |
| |
| if (tty_is_vc(tty)) { |
| int v; |
| |
| if (!seat) |
| seat = m->seat0; |
| else if (seat != m->seat0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "TTY %s is virtual console but seat %s is not seat0", tty, seat->id); |
| |
| v = vtnr_from_tty(tty); |
| if (v <= 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Cannot determine VT number from virtual console TTY %s", tty); |
| |
| if (vtnr == 0) |
| vtnr = (uint32_t) v; |
| else if (vtnr != (uint32_t) v) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Specified TTY and VT number do not match"); |
| |
| } else if (tty_is_console(tty)) { |
| |
| if (!seat) |
| seat = m->seat0; |
| else if (seat != m->seat0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Console TTY specified but seat is not seat0"); |
| |
| if (vtnr != 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Console TTY specified but VT number is not 0"); |
| } |
| |
| if (seat) { |
| if (seat_has_vts(seat)) { |
| if (vtnr <= 0 || vtnr > 63) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "VT number out of range"); |
| } else { |
| if (vtnr != 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Seat has no VTs but VT number not 0"); |
| } |
| } |
| |
| if (t == _SESSION_TYPE_INVALID) { |
| if (!isempty(display)) |
| t = SESSION_X11; |
| else if (!isempty(tty)) |
| t = SESSION_TTY; |
| else |
| t = SESSION_UNSPECIFIED; |
| } |
| |
| if (c == _SESSION_CLASS_INVALID) { |
| if (t == SESSION_UNSPECIFIED) |
| c = SESSION_BACKGROUND; |
| else |
| c = SESSION_USER; |
| } |
| |
| if (leader == 0) { |
| _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) |
| return r; |
| |
| r = sd_bus_creds_get_pid(creds, (pid_t*) &leader); |
| if (r < 0) |
| return r; |
| } |
| |
| /* Check if we are already in a logind session. Or if we are in user@.service |
| * which is a special PAM session that avoids creating a logind session. */ |
| r = manager_get_user_by_pid(m, leader, NULL); |
| if (r < 0) |
| return r; |
| if (r > 0) |
| return sd_bus_error_setf(error, BUS_ERROR_SESSION_BUSY, |
| "Already running in a session or user slice"); |
| |
| /* |
| * 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 < MALLOC_ELEMENTSOF(m->seat0->positions) && |
| m->seat0->positions[vtnr] && |
| m->seat0->positions[vtnr]->class != SESSION_GREETER) |
| return sd_bus_error_set(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); |
| |
| (void) audit_session_from_pid(leader, &audit_id); |
| if (audit_session_is_valid(audit_id)) { |
| /* Keep our session IDs and the audit session IDs in sync */ |
| |
| if (asprintf(&id, "%"PRIu32, audit_id) < 0) |
| return -ENOMEM; |
| |
| /* Wut? There's already a session by this name and we didn't find it above? Weird, then let's |
| * not trust the audit data and let's better register a new ID */ |
| if (hashmap_contains(m->sessions, id)) { |
| log_warning("Existing logind session ID %s used by new audit session, ignoring.", id); |
| audit_id = AUDIT_SESSION_INVALID; |
| id = mfree(id); |
| } |
| } |
| |
| if (!id) { |
| do { |
| id = mfree(id); |
| |
| if (asprintf(&id, "c%lu", ++m->session_counter) < 0) |
| return -ENOMEM; |
| |
| } while (hashmap_contains(m->sessions, id)); |
| } |
| |
| /* The generated names should not clash with 'auto' or 'self' */ |
| assert(!SESSION_IS_SELF(id)); |
| assert(!SESSION_IS_AUTO(id)); |
| |
| /* If we are not watching utmp already, try again */ |
| manager_reconnect_utmp(m); |
| |
| r = manager_add_user_by_uid(m, uid, &user); |
| if (r < 0) |
| goto fail; |
| |
| r = manager_add_session(m, id, &session); |
| if (r < 0) |
| goto fail; |
| |
| session_set_user(session, user); |
| r = session_set_leader(session, leader); |
| if (r < 0) |
| goto fail; |
| |
| session->original_type = session->type = t; |
| session->class = c; |
| session->remote = remote; |
| session->vtnr = vtnr; |
| |
| if (!isempty(tty)) { |
| session->tty = strdup(tty); |
| if (!session->tty) { |
| r = -ENOMEM; |
| goto fail; |
| } |
| |
| session->tty_validity = TTY_FROM_PAM; |
| } |
| |
| 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 (!isempty(desktop)) { |
| session->desktop = strdup(desktop); |
| if (!session->desktop) { |
| r = -ENOMEM; |
| goto fail; |
| } |
| } |
| |
| if (seat) { |
| r = seat_attach_session(seat, session); |
| if (r < 0) |
| goto fail; |
| } |
| |
| r = sd_bus_message_enter_container(message, 'a', "(sv)"); |
| if (r < 0) |
| goto fail; |
| |
| r = session_start(session, message, error); |
| if (r < 0) |
| goto fail; |
| |
| r = sd_bus_message_exit_container(message); |
| if (r < 0) |
| goto fail; |
| |
| session->create_message = sd_bus_message_ref(message); |
| |
| /* Now, let's wait until the slice unit and stuff got created. We send the reply back from |
| * session_send_create_reply(). */ |
| |
| return 1; |
| |
| fail: |
| if (session) |
| session_add_to_gc_queue(session); |
| |
| if (user) |
| user_add_to_gc_queue(user); |
| |
| return r; |
| } |
| |
| static int method_release_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = ASSERT_PTR(userdata); |
| Session *session; |
| const char *name; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| r = manager_get_session_from_creds(m, message, name, error, &session); |
| if (r < 0) |
| return r; |
| |
| r = session_release(session); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_activate_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = ASSERT_PTR(userdata); |
| Session *session; |
| const char *name; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| r = manager_get_session_from_creds(m, message, name, error, &session); |
| if (r < 0) |
| return r; |
| |
| /* PolicyKit is done by bus_session_method_activate() */ |
| |
| return bus_session_method_activate(message, session, error); |
| } |
| |
| static int method_activate_session_on_seat(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| const char *session_name, *seat_name; |
| Manager *m = ASSERT_PTR(userdata); |
| Session *session; |
| Seat *seat; |
| int r; |
| |
| assert(message); |
| |
| /* Same as ActivateSession() but refuses to work if the seat doesn't match */ |
| |
| r = sd_bus_message_read(message, "ss", &session_name, &seat_name); |
| if (r < 0) |
| return r; |
| |
| r = manager_get_session_from_creds(m, message, session_name, error, &session); |
| if (r < 0) |
| return r; |
| |
| r = manager_get_seat_from_creds(m, message, seat_name, error, &seat); |
| if (r < 0) |
| return r; |
| |
| if (session->seat != seat) |
| return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT, |
| "Session %s not on seat %s", session_name, seat_name); |
| |
| r = check_polkit_chvt(message, m, error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* Will call us back */ |
| |
| r = session_activate(session); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_lock_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = ASSERT_PTR(userdata); |
| Session *session; |
| const char *name; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| r = manager_get_session_from_creds(m, message, name, error, &session); |
| if (r < 0) |
| return r; |
| |
| return bus_session_method_lock(message, session, error); |
| } |
| |
| static int method_lock_sessions(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = ASSERT_PTR(userdata); |
| int r; |
| |
| assert(message); |
| |
| r = bus_verify_polkit_async( |
| message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.lock-sessions", |
| NULL, |
| false, |
| UID_INVALID, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* Will call us back */ |
| |
| r = session_send_lock_all(m, streq(sd_bus_message_get_member(message), "LockSessions")); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_kill_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| const char *name; |
| Manager *m = ASSERT_PTR(userdata); |
| Session *session; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| r = manager_get_session_from_creds(m, message, name, error, &session); |
| if (r < 0) |
| return r; |
| |
| return bus_session_method_kill(message, session, error); |
| } |
| |
| static int method_kill_user(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = ASSERT_PTR(userdata); |
| uint32_t uid; |
| User *user; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "u", &uid); |
| if (r < 0) |
| return r; |
| |
| r = manager_get_user_from_creds(m, message, uid, error, &user); |
| if (r < 0) |
| return r; |
| |
| return bus_user_method_kill(message, user, error); |
| } |
| |
| static int method_terminate_session(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = ASSERT_PTR(userdata); |
| const char *name; |
| Session *session; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| r = manager_get_session_from_creds(m, message, name, error, &session); |
| if (r < 0) |
| return r; |
| |
| return bus_session_method_terminate(message, session, error); |
| } |
| |
| static int method_terminate_user(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = ASSERT_PTR(userdata); |
| uint32_t uid; |
| User *user; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "u", &uid); |
| if (r < 0) |
| return r; |
| |
| r = manager_get_user_from_creds(m, message, uid, error, &user); |
| if (r < 0) |
| return r; |
| |
| return bus_user_method_terminate(message, user, error); |
| } |
| |
| static int method_terminate_seat(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = ASSERT_PTR(userdata); |
| const char *name; |
| Seat *seat; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| r = manager_get_seat_from_creds(m, message, name, error, &seat); |
| if (r < 0) |
| return r; |
| |
| return bus_seat_method_terminate(message, seat, error); |
| } |
| |
| static int method_set_user_linger(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
| _cleanup_free_ char *cc = NULL; |
| Manager *m = ASSERT_PTR(userdata); |
| int r, b, interactive; |
| struct passwd *pw; |
| const char *path; |
| uint32_t uid, auth_uid; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "ubb", &uid, &b, &interactive); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID | |
| SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds); |
| if (r < 0) |
| return r; |
| |
| if (!uid_is_valid(uid)) { |
| /* Note that we get the owner UID of the session or user unit, |
| * not the actual client UID here! */ |
| r = sd_bus_creds_get_owner_uid(creds, &uid); |
| if (r < 0) |
| return r; |
| } |
| |
| /* owner_uid is racy, so for authorization we must use euid */ |
| r = sd_bus_creds_get_euid(creds, &auth_uid); |
| if (r < 0) |
| return r; |
| |
| errno = 0; |
| pw = getpwuid(uid); |
| if (!pw) |
| return errno_or_else(ENOENT); |
| |
| r = bus_verify_polkit_async( |
| message, |
| CAP_SYS_ADMIN, |
| uid == auth_uid ? "org.freedesktop.login1.set-self-linger" : |
| "org.freedesktop.login1.set-user-linger", |
| NULL, |
| interactive, |
| UID_INVALID, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| (void) mkdir_p_label("/var/lib/systemd", 0755); |
| r = mkdir_safe_label("/var/lib/systemd/linger", 0755, 0, 0, MKDIR_WARN_MODE); |
| if (r < 0) |
| return r; |
| |
| cc = cescape(pw->pw_name); |
| if (!cc) |
| return -ENOMEM; |
| |
| path = strjoina("/var/lib/systemd/linger/", cc); |
| if (b) { |
| User *u; |
| |
| r = touch(path); |
| if (r < 0) |
| return r; |
| |
| if (manager_add_user_by_uid(m, uid, &u) >= 0) |
| user_start(u); |
| |
| } else { |
| User *u; |
| |
| r = unlink(path); |
| if (r < 0 && errno != ENOENT) |
| return -errno; |
| |
| u = hashmap_get(m->users, UID_TO_PTR(uid)); |
| if (u) |
| user_add_to_gc_queue(u); |
| } |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int trigger_device(Manager *m, sd_device *d) { |
| _cleanup_(sd_device_enumerator_unrefp) sd_device_enumerator *e = NULL; |
| int r; |
| |
| assert(m); |
| |
| r = sd_device_enumerator_new(&e); |
| if (r < 0) |
| return r; |
| |
| r = sd_device_enumerator_allow_uninitialized(e); |
| if (r < 0) |
| return r; |
| |
| if (d) { |
| r = sd_device_enumerator_add_match_parent(e, d); |
| if (r < 0) |
| return r; |
| } |
| |
| FOREACH_DEVICE(e, d) { |
| r = sd_device_trigger(d, SD_DEVICE_CHANGE); |
| if (r < 0) |
| log_device_debug_errno(d, r, "Failed to trigger device, ignoring: %m"); |
| } |
| |
| return 0; |
| } |
| |
| static int attach_device(Manager *m, const char *seat, const char *sysfs) { |
| _cleanup_(sd_device_unrefp) sd_device *d = NULL; |
| _cleanup_free_ char *rule = NULL, *file = NULL; |
| const char *id_for_seat; |
| int r; |
| |
| assert(m); |
| assert(seat); |
| assert(sysfs); |
| |
| r = sd_device_new_from_syspath(&d, sysfs); |
| if (r < 0) |
| return r; |
| |
| if (sd_device_has_current_tag(d, "seat") <= 0) |
| return -ENODEV; |
| |
| if (sd_device_get_property_value(d, "ID_FOR_SEAT", &id_for_seat) < 0) |
| return -ENODEV; |
| |
| if (asprintf(&file, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat) < 0) |
| return -ENOMEM; |
| |
| if (asprintf(&rule, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat, seat) < 0) |
| return -ENOMEM; |
| |
| (void) mkdir_p_label("/etc/udev/rules.d", 0755); |
| r = write_string_file_atomic_label(file, rule); |
| if (r < 0) |
| return r; |
| |
| return trigger_device(m, d); |
| } |
| |
| static int flush_devices(Manager *m) { |
| _cleanup_closedir_ DIR *d = NULL; |
| |
| assert(m); |
| |
| d = opendir("/etc/udev/rules.d"); |
| if (!d) { |
| if (errno != ENOENT) |
| log_warning_errno(errno, "Failed to open /etc/udev/rules.d: %m"); |
| } else |
| FOREACH_DIRENT_ALL(de, d, break) { |
| if (!dirent_is_file(de)) |
| continue; |
| |
| if (!startswith(de->d_name, "72-seat-")) |
| continue; |
| |
| if (!endswith(de->d_name, ".rules")) |
| continue; |
| |
| if (unlinkat(dirfd(d), de->d_name, 0) < 0) |
| log_warning_errno(errno, "Failed to unlink %s: %m", de->d_name); |
| } |
| |
| return trigger_device(m, NULL); |
| } |
| |
| static int method_attach_device(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| const char *sysfs, *seat; |
| Manager *m = ASSERT_PTR(userdata); |
| int interactive, r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "ssb", &seat, &sysfs, &interactive); |
| if (r < 0) |
| return r; |
| |
| if (!path_is_normalized(sysfs)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not normalized", sysfs); |
| if (!path_startswith(sysfs, "/sys")) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not in /sys", sysfs); |
| |
| if (SEAT_IS_SELF(seat) || SEAT_IS_AUTO(seat)) { |
| Seat *found; |
| |
| r = manager_get_seat_from_creds(m, message, seat, error, &found); |
| if (r < 0) |
| return r; |
| |
| seat = found->id; |
| |
| } else if (!seat_name_is_valid(seat)) /* Note that a seat does not have to exist yet for this operation to succeed */ |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat name %s is not valid", seat); |
| |
| r = bus_verify_polkit_async( |
| message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.attach-device", |
| NULL, |
| interactive, |
| UID_INVALID, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| r = attach_device(m, seat, sysfs); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_flush_devices(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = ASSERT_PTR(userdata); |
| int interactive, r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "b", &interactive); |
| if (r < 0) |
| return r; |
| |
| r = bus_verify_polkit_async( |
| message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.flush-devices", |
| NULL, |
| interactive, |
| UID_INVALID, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| r = flush_devices(m); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int have_multiple_sessions( |
| Manager *m, |
| uid_t uid) { |
| |
| Session *session; |
| |
| assert(m); |
| |
| /* Check for other users' sessions. Greeter sessions do not |
| * count, and non-login sessions do not count either. */ |
| HASHMAP_FOREACH(session, m->sessions) |
| if (session->class == SESSION_USER && |
| session->user->user_record->uid != uid) |
| return true; |
| |
| return false; |
| } |
| |
| static int bus_manager_log_shutdown( |
| Manager *m, |
| const HandleActionData *a) { |
| assert(m); |
| assert(a); |
| |
| const char *message = a->message ?: "System is shutting down"; |
| const char *log_verb = a->log_verb ? strjoina("SHUTDOWN=", a->log_verb) : NULL; |
| |
| return log_struct(LOG_NOTICE, |
| "MESSAGE_ID=%s", a->message_id ?: SD_MESSAGE_SHUTDOWN_STR, |
| LOG_MESSAGE("%s%s%s%s.", |
| message, |
| m->wall_message ? " (" : "", |
| strempty(m->wall_message), |
| m->wall_message ? ")" : ""), |
| log_verb); |
| } |
| |
| static int lid_switch_ignore_handler(sd_event_source *e, uint64_t usec, void *userdata) { |
| Manager *m = ASSERT_PTR(userdata); |
| |
| assert(e); |
| |
| m->lid_switch_ignore_event_source = sd_event_source_unref(m->lid_switch_ignore_event_source); |
| return 0; |
| } |
| |
| int manager_set_lid_switch_ignore(Manager *m, usec_t until) { |
| int r; |
| |
| assert(m); |
| |
| if (until <= now(CLOCK_MONOTONIC)) |
| return 0; |
| |
| /* We want to ignore the lid switch for a while after each |
| * suspend, and after boot-up. Hence let's install a timer for |
| * this. As long as the event source exists we ignore the lid |
| * switch. */ |
| |
| if (m->lid_switch_ignore_event_source) { |
| usec_t u; |
| |
| r = sd_event_source_get_time(m->lid_switch_ignore_event_source, &u); |
| if (r < 0) |
| return r; |
| |
| if (until <= u) |
| return 0; |
| |
| r = sd_event_source_set_time(m->lid_switch_ignore_event_source, until); |
| } else |
| r = sd_event_add_time( |
| m->event, |
| &m->lid_switch_ignore_event_source, |
| CLOCK_MONOTONIC, |
| until, 0, |
| lid_switch_ignore_handler, m); |
| |
| return r; |
| } |
| |
| static int send_prepare_for(Manager *m, InhibitWhat w, bool _active) { |
| int active = _active; |
| |
| assert(m); |
| assert(IN_SET(w, INHIBIT_SHUTDOWN, INHIBIT_SLEEP)); |
| |
| return sd_bus_emit_signal(m->bus, |
| "/org/freedesktop/login1", |
| "org.freedesktop.login1.Manager", |
| w == INHIBIT_SHUTDOWN ? "PrepareForShutdown" : "PrepareForSleep", |
| "b", |
| active); |
| } |
| |
| static int execute_shutdown_or_sleep( |
| Manager *m, |
| const HandleActionData *a, |
| sd_bus_error *error) { |
| |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
| const char *p; |
| int r; |
| |
| assert(m); |
| assert(a); |
| |
| if (a->inhibit_what == INHIBIT_SHUTDOWN) |
| bus_manager_log_shutdown(m, a); |
| |
| r = bus_call_method( |
| m->bus, |
| bus_systemd_mgr, |
| "StartUnit", |
| error, |
| &reply, |
| "ss", a->target, "replace-irreversibly"); |
| if (r < 0) |
| goto error; |
| |
| r = sd_bus_message_read(reply, "o", &p); |
| if (r < 0) |
| goto error; |
| |
| r = free_and_strdup(&m->action_job, p); |
| if (r < 0) |
| goto error; |
| |
| m->delayed_action = a; |
| |
| /* Make sure the lid switch is ignored for a while */ |
| manager_set_lid_switch_ignore(m, usec_add(now(CLOCK_MONOTONIC), m->holdoff_timeout_usec)); |
| |
| return 0; |
| |
| error: |
| /* Tell people that they now may take a lock again */ |
| (void) send_prepare_for(m, a->inhibit_what, false); |
| |
| return r; |
| } |
| |
| int manager_dispatch_delayed(Manager *manager, bool timeout) { |
| _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
| Inhibitor *offending = NULL; |
| int r; |
| |
| assert(manager); |
| |
| if (!manager->delayed_action || manager->action_job) |
| return 0; |
| |
| if (manager_is_inhibited(manager, manager->delayed_action->inhibit_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); |
| |
| log_notice("Delay lock is active (UID "UID_FMT"/%s, PID "PID_FMT"/%s) but inhibitor timeout is reached.", |
| offending->uid, strna(u), |
| offending->pid, strna(comm)); |
| } |
| |
| /* Actually do the operation */ |
| r = execute_shutdown_or_sleep(manager, manager->delayed_action, &error); |
| if (r < 0) { |
| log_warning("Error during inhibitor-delayed operation (already returned success to client): %s", |
| bus_error_message(&error, r)); |
| |
| manager->delayed_action = NULL; |
| } |
| |
| return 1; /* We did some work. */ |
| } |
| |
| static int manager_inhibit_timeout_handler( |
| sd_event_source *s, |
| uint64_t usec, |
| void *userdata) { |
| |
| Manager *manager = ASSERT_PTR(userdata); |
| |
| assert(manager->inhibit_timeout_source == s); |
| |
| return manager_dispatch_delayed(manager, true); |
| } |
| |
| static int delay_shutdown_or_sleep( |
| Manager *m, |
| const HandleActionData *a) { |
| |
| int r; |
| |
| assert(m); |
| assert(a); |
| |
| if (m->inhibit_timeout_source) { |
| r = sd_event_source_set_time_relative(m->inhibit_timeout_source, m->inhibit_delay_max); |
| if (r < 0) |
| return log_error_errno(r, "sd_event_source_set_time_relative() failed: %m"); |
| |
| r = sd_event_source_set_enabled(m->inhibit_timeout_source, SD_EVENT_ONESHOT); |
| if (r < 0) |
| return log_error_errno(r, "sd_event_source_set_enabled() failed: %m"); |
| } else { |
| r = sd_event_add_time_relative( |
| m->event, |
| &m->inhibit_timeout_source, |
| CLOCK_MONOTONIC, m->inhibit_delay_max, 0, |
| manager_inhibit_timeout_handler, m); |
| if (r < 0) |
| return r; |
| } |
| |
| m->delayed_action = a; |
| |
| return 0; |
| } |
| |
| int bus_manager_shutdown_or_sleep_now_or_later( |
| Manager *m, |
| const HandleActionData *a, |
| sd_bus_error *error) { |
| |
| _cleanup_free_ char *load_state = NULL; |
| bool delayed; |
| int r; |
| |
| assert(m); |
| assert(a); |
| assert(!m->action_job); |
| |
| r = unit_load_state(m->bus, a->target, &load_state); |
| if (r < 0) |
| return r; |
| |
| if (!streq(load_state, "loaded")) |
| return log_notice_errno(SYNTHETIC_ERRNO(EACCES), |
| "Unit %s is %s, refusing operation.", |
| a->target, load_state); |
| |
| /* Tell everybody to prepare for shutdown/sleep */ |
| (void) send_prepare_for(m, a->inhibit_what, true); |
| |
| delayed = |
| m->inhibit_delay_max > 0 && |
| manager_is_inhibited(m, a->inhibit_what, INHIBIT_DELAY, NULL, false, false, 0, NULL); |
| |
| if (delayed) |
| /* Shutdown is delayed, keep in mind what we |
| * want to do, and start a timeout */ |
| r = delay_shutdown_or_sleep(m, a); |
| else |
| /* Shutdown is not delayed, execute it |
| * immediately */ |
| r = execute_shutdown_or_sleep(m, a, error); |
| |
| return r; |
| } |
| |
| static int verify_shutdown_creds( |
| Manager *m, |
| sd_bus_message *message, |
| const HandleActionData *a, |
| uint64_t flags, |
| sd_bus_error *error) { |
| |
| _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
| bool multiple_sessions, blocked, interactive; |
| uid_t uid; |
| int r; |
| |
| assert(m); |
| assert(a); |
| assert(message); |
| |
| r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_creds_get_euid(creds, &uid); |
| if (r < 0) |
| return r; |
| |
| r = have_multiple_sessions(m, uid); |
| if (r < 0) |
| return r; |
| |
| multiple_sessions = r > 0; |
| blocked = manager_is_inhibited(m, a->inhibit_what, INHIBIT_BLOCK, NULL, false, true, uid, NULL); |
| interactive = flags & SD_LOGIND_INTERACTIVE; |
| |
| if (multiple_sessions) { |
| r = bus_verify_polkit_async( |
| message, |
| CAP_SYS_BOOT, |
| a->polkit_action_multiple_sessions, |
| NULL, |
| interactive, |
| UID_INVALID, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| } |
| |
| if (blocked) { |
| /* We don't check polkit for root here, because you can't be more privileged than root */ |
| if (uid == 0 && (flags & SD_LOGIND_ROOT_CHECK_INHIBITORS)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, |
| "Access denied to root due to active block inhibitor"); |
| |
| r = bus_verify_polkit_async(message, |
| CAP_SYS_BOOT, |
| a->polkit_action_ignore_inhibit, |
| NULL, |
| interactive, |
| UID_INVALID, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| } |
| |
| if (!multiple_sessions && !blocked) { |
| r = bus_verify_polkit_async(message, |
| CAP_SYS_BOOT, |
| a->polkit_action, |
| NULL, |
| interactive, |
| UID_INVALID, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| } |
| |
| return 0; |
| } |
| |
| static int setup_wall_message_timer(Manager *m, sd_bus_message* message) { |
| _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
| int r; |
| |
| 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 = NULL; |
| |
| (void) sd_bus_creds_get_uid(creds, &m->scheduled_shutdown_uid); |
| (void) sd_bus_creds_get_tty(creds, &tty); |
| |
| r = free_and_strdup(&m->scheduled_shutdown_tty, tty); |
| if (r < 0) |
| return log_oom(); |
| } |
| |
| r = manager_setup_wall_message_timer(m); |
| if (r < 0) |
| return r; |
| |
| return 0; |
| } |
| |
| static int method_do_shutdown_or_sleep( |
| Manager *m, |
| sd_bus_message *message, |
| const HandleActionData *a, |
| bool with_flags, |
| sd_bus_error *error) { |
| |
| uint64_t flags; |
| int r; |
| |
| assert(m); |
| assert(message); |
| assert(a); |
| |
| if (with_flags) { |
| /* New style method: with flags parameter (and interactive bool in the bus message header) */ |
| r = sd_bus_message_read(message, "t", &flags); |
| if (r < 0) |
| return r; |
| if ((flags & ~SD_LOGIND_SHUTDOWN_AND_SLEEP_FLAGS_PUBLIC) != 0) |
| return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Invalid flags parameter"); |
| if (a->handle != HANDLE_REBOOT && (flags & SD_LOGIND_REBOOT_VIA_KEXEC)) |
| return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Reboot via kexec is only applicable with reboot operations"); |
| } else { |
| /* Old style method: no flags parameter, but interactive bool passed as boolean in |
| * payload. Let's convert this argument to the new-style flags parameter for our internal |
| * use. */ |
| int interactive; |
| |
| r = sd_bus_message_read(message, "b", &interactive); |
| if (r < 0) |
| return r; |
| |
| flags = interactive ? SD_LOGIND_INTERACTIVE : 0; |
| } |
| |
| if ((flags & SD_LOGIND_REBOOT_VIA_KEXEC) && kexec_loaded()) |
| a = handle_action_lookup(HANDLE_KEXEC); |
| |
| /* Don't allow multiple jobs being executed at the same time */ |
| if (m->delayed_action) |
| return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, |
| "There's already a shutdown or sleep operation in progress"); |
| |
| if (a->sleep_operation >= 0) { |
| r = can_sleep(a->sleep_operation); |
| if (r == -ENOSPC) |
| return sd_bus_error_set(error, BUS_ERROR_SLEEP_VERB_NOT_SUPPORTED, |
| "Not enough swap space for hibernation"); |
| if (r == 0) |
| return sd_bus_error_setf(error, BUS_ERROR_SLEEP_VERB_NOT_SUPPORTED, |
| "Sleep verb \"%s\" not supported", |
| sleep_operation_to_string(a->sleep_operation)); |
| if (r < 0) |
| return r; |
| } |
| |
| r = verify_shutdown_creds(m, message, a, flags, error); |
| if (r != 0) |
| return r; |
| |
| /* reset case we're shorting a scheduled shutdown */ |
| m->unlink_nologin = false; |
| reset_scheduled_shutdown(m); |
| |
| m->scheduled_shutdown_timeout = 0; |
| m->scheduled_shutdown_action = a; |
| |
| (void) setup_wall_message_timer(m, message); |
| |
| r = bus_manager_shutdown_or_sleep_now_or_later(m, a, error); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_poweroff(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_do_shutdown_or_sleep( |
| m, message, |
| handle_action_lookup(HANDLE_POWEROFF), |
| sd_bus_message_is_method_call(message, NULL, "PowerOffWithFlags"), |
| error); |
| } |
| |
| static int method_reboot(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_do_shutdown_or_sleep( |
| m, message, |
| handle_action_lookup(HANDLE_REBOOT), |
| sd_bus_message_is_method_call(message, NULL, "RebootWithFlags"), |
| error); |
| } |
| |
| static int method_halt(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_do_shutdown_or_sleep( |
| m, message, |
| handle_action_lookup(HANDLE_HALT), |
| sd_bus_message_is_method_call(message, NULL, "HaltWithFlags"), |
| error); |
| } |
| |
| static int method_suspend(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_do_shutdown_or_sleep( |
| m, message, |
| handle_action_lookup(HANDLE_SUSPEND), |
| sd_bus_message_is_method_call(message, NULL, "SuspendWithFlags"), |
| error); |
| } |
| |
| static int method_hibernate(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_do_shutdown_or_sleep( |
| m, message, |
| handle_action_lookup(HANDLE_HIBERNATE), |
| sd_bus_message_is_method_call(message, NULL, "HibernateWithFlags"), |
| error); |
| } |
| |
| static int method_hybrid_sleep(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_do_shutdown_or_sleep( |
| m, message, |
| handle_action_lookup(HANDLE_HYBRID_SLEEP), |
| sd_bus_message_is_method_call(message, NULL, "HybridSleepWithFlags"), |
| error); |
| } |
| |
| static int method_suspend_then_hibernate(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_do_shutdown_or_sleep( |
| m, message, |
| handle_action_lookup(HANDLE_SUSPEND_THEN_HIBERNATE), |
| sd_bus_message_is_method_call(message, NULL, "SuspendThenHibernateWithFlags"), |
| error); |
| } |
| |
| static int nologin_timeout_handler( |
| sd_event_source *s, |
| uint64_t usec, |
| void *userdata) { |
| |
| Manager *m = userdata; |
| |
| log_info("Creating /run/nologin, blocking further logins..."); |
| |
| m->unlink_nologin = |
| create_shutdown_run_nologin_or_warn() >= 0; |
| |
| return 0; |
| } |
| |
| static usec_t nologin_timeout_usec(usec_t elapse) { |
| /* Issue /run/nologin five minutes before shutdown */ |
| return LESS_BY(elapse, 5 * USEC_PER_MINUTE); |
| } |
| |
| void manager_load_scheduled_shutdown(Manager *m) { |
| _cleanup_fclose_ FILE *f = NULL; |
| _cleanup_free_ char *usec = NULL, |
| *warn_wall = NULL, |
| *mode = NULL, |
| *wall_message = NULL, |
| *uid = NULL, |
| *tty = NULL; |
| int r; |
| |
| assert(m); |
| |
| r = parse_env_file(f, SHUTDOWN_SCHEDULE_FILE, |
| "USEC", &usec, |
| "WARN_WALL", &warn_wall, |
| "MODE", &mode, |
| "WALL_MESSAGE", &wall_message, |
| "UID", &uid, |
| "TTY", &tty); |
| |
| /* reset will delete the file */ |
| reset_scheduled_shutdown(m); |
| |
| if (r == -ENOENT) |
| return; |
| if (r < 0) |
| return (void) log_debug_errno(r, "Failed to parse " SHUTDOWN_SCHEDULE_FILE ": %m"); |
| |
| HandleAction handle = handle_action_from_string(mode); |
| if (handle < 0) |
| return (void) log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse scheduled shutdown type: %s", mode); |
| |
| if (!usec) |
| return (void) log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "USEC is required"); |
| if (deserialize_usec(usec, &m->scheduled_shutdown_timeout) < 0) |
| return; |
| |
| /* assign parsed type only after we know usec is also valid */ |
| m->scheduled_shutdown_action = handle_action_lookup(handle); |
| |
| if (warn_wall) { |
| r = parse_boolean(warn_wall); |
| if (r < 0) |
| log_debug_errno(r, "Failed to parse enabling wall messages"); |
| else |
| m->enable_wall_messages = r; |
| } |
| |
| if (wall_message) { |
| _cleanup_free_ char *unescaped = NULL; |
| r = cunescape(wall_message, 0, &unescaped); |
| if (r < 0) |
| log_debug_errno(r, "Failed to parse wall message: %s", wall_message); |
| else |
| free_and_replace(m->wall_message, unescaped); |
| } |
| |
| if (uid) { |
| r = parse_uid(uid, &m->scheduled_shutdown_uid); |
| if (r < 0) |
| log_debug_errno(r, "Failed to parse wall uid: %s", uid); |
| } |
| |
| free_and_replace(m->scheduled_shutdown_tty, tty); |
| |
| r = manager_setup_shutdown_timers(m); |
| if (r < 0) |
| return reset_scheduled_shutdown(m); |
| |
| (void) manager_setup_wall_message_timer(m); |
| (void) update_schedule_file(m); |
| |
| return; |
| } |
| |
| static int update_schedule_file(Manager *m) { |
| _cleanup_free_ char *temp_path = NULL; |
| _cleanup_fclose_ FILE *f = NULL; |
| int r; |
| |
| assert(m); |
| assert(m->scheduled_shutdown_action); |
| |
| r = mkdir_parents_label(SHUTDOWN_SCHEDULE_FILE, 0755); |
| if (r < 0) |
| return log_error_errno(r, "Failed to create shutdown subdirectory: %m"); |
| |
| r = fopen_temporary(SHUTDOWN_SCHEDULE_FILE, &f, &temp_path); |
| if (r < 0) |
| return log_error_errno(r, "Failed to save information about scheduled shutdowns: %m"); |
| |
| (void) fchmod(fileno(f), 0644); |
| |
| serialize_usec(f, "USEC", m->scheduled_shutdown_timeout); |
| serialize_item_format(f, "WARN_WALL", "%s", one_zero(m->enable_wall_messages)); |
| serialize_item_format(f, "MODE", "%s", handle_action_to_string(m->scheduled_shutdown_action->handle)); |
| serialize_item_format(f, "UID", UID_FMT, m->scheduled_shutdown_uid); |
| |
| if (m->scheduled_shutdown_tty) |
| serialize_item_format(f, "TTY", "%s", m->scheduled_shutdown_tty); |
| |
| if (!isempty(m->wall_message)) { |
| r = serialize_item_escaped(f, "WALL_MESSAGE", m->wall_message); |
| if (r < 0) |
| goto fail; |
| } |
| |
| r = fflush_and_check(f); |
| if (r < 0) |
| goto fail; |
| |
| if (rename(temp_path, SHUTDOWN_SCHEDULE_FILE) < 0) { |
| r = -errno; |
| goto fail; |
| } |
| |
| return 0; |
| |
| fail: |
| (void) unlink(temp_path); |
| (void) unlink(SHUTDOWN_SCHEDULE_FILE); |
| |
| return log_error_errno(r, "Failed to write information about scheduled shutdowns: %m"); |
| } |
| |
| static void reset_scheduled_shutdown(Manager *m) { |
| assert(m); |
| |
| 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); |
| |
| m->scheduled_shutdown_action = NULL; |
| m->scheduled_shutdown_timeout = USEC_INFINITY; |
| m->scheduled_shutdown_uid = UID_INVALID; |
| m->scheduled_shutdown_tty = mfree(m->scheduled_shutdown_tty); |
| m->wall_message = mfree(m->wall_message); |
| m->shutdown_dry_run = false; |
| |
| if (m->unlink_nologin) { |
| (void) unlink_or_warn("/run/nologin"); |
| m->unlink_nologin = false; |
| } |
| |
| (void) unlink(SHUTDOWN_SCHEDULE_FILE); |
| } |
| |
| static int manager_scheduled_shutdown_handler( |
| sd_event_source *s, |
| uint64_t usec, |
| void *userdata) { |
| |
| const HandleActionData *a = NULL; |
| _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
| Manager *m = ASSERT_PTR(userdata); |
| int r; |
| |
| a = m->scheduled_shutdown_action; |
| assert(a); |
| |
| /* Don't allow multiple jobs being executed at the same time */ |
| if (m->delayed_action) { |
| r = -EALREADY; |
| log_error("Scheduled shutdown to %s failed: shutdown or sleep operation already in progress", a->target); |
| goto error; |
| } |
| |
| if (m->shutdown_dry_run) { |
| /* We do not process delay inhibitors here. Otherwise, we |
| * would have to be considered "in progress" (like the check |
| * above) for some seconds after our admin has seen the final |
| * wall message. */ |
| |
| bus_manager_log_shutdown(m, a); |
| log_info("Running in dry run, suppressing action."); |
| reset_scheduled_shutdown(m); |
| |
| return 0; |
| } |
| |
| r = bus_manager_shutdown_or_sleep_now_or_later(m, m->scheduled_shutdown_action, &error); |
| if (r < 0) { |
| log_error_errno(r, "Scheduled shutdown to %s failed: %m", a->target); |
| goto error; |
| } |
| |
| return 0; |
| |
| error: |
| reset_scheduled_shutdown(m); |
| return r; |
| } |
| |
| static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = ASSERT_PTR(userdata); |
| HandleAction handle; |
| const HandleActionData *a; |
| uint64_t elapse; |
| char *type; |
| int r; |
| bool dry_run = false; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "st", &type, &elapse); |
| if (r < 0) |
| return r; |
| |
| if (startswith(type, "dry-")) { |
| type += 4; |
| dry_run = true; |
| } |
| |
| handle = handle_action_from_string(type); |
| if (!IN_SET(handle, HANDLE_POWEROFF, HANDLE_REBOOT, HANDLE_HALT, HANDLE_KEXEC)) |
| return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Unsupported shutdown type"); |
| |
| a = handle_action_lookup(handle); |
| assert(a); |
| assert(a->polkit_action); |
| |
| r = verify_shutdown_creds(m, message, a, 0, error); |
| if (r != 0) |
| return r; |
| |
| m->scheduled_shutdown_action = a; |
| m->shutdown_dry_run = dry_run; |
| m->scheduled_shutdown_timeout = elapse; |
| |
| r = manager_setup_shutdown_timers(m); |
| if (r < 0) |
| return r; |
| |
| r = setup_wall_message_timer(m, message); |
| if (r >= 0) |
| r = update_schedule_file(m); |
| |
| if (r < 0) { |
| reset_scheduled_shutdown(m); |
| return r; |
| } |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int manager_setup_shutdown_timers(Manager* m) { |
| int r; |
| |
| r = event_reset_time(m->event, &m->scheduled_shutdown_timeout_source, |
| CLOCK_REALTIME, |
| m->scheduled_shutdown_timeout, 0, |
| manager_scheduled_shutdown_handler, m, |
| 0, "scheduled-shutdown-timeout", true); |
| if (r < 0) |
| goto fail; |
| |
| r = event_reset_time(m->event, &m->nologin_timeout_source, |
| CLOCK_REALTIME, |
| nologin_timeout_usec(m->scheduled_shutdown_timeout), 0, |
| nologin_timeout_handler, m, |
| 0, "nologin-timeout", true); |
| if (r < 0) |
| goto fail; |
| |
| return 0; |
| |
| fail: |
| m->scheduled_shutdown_timeout_source = sd_event_source_unref(m->scheduled_shutdown_timeout_source); |
| m->nologin_timeout_source = sd_event_source_unref(m->nologin_timeout_source); |
| |
| return r; |
| } |
| |
| static int method_cancel_scheduled_shutdown(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = ASSERT_PTR(userdata); |
| const HandleActionData *a; |
| bool cancelled; |
| int r; |
| |
| assert(message); |
| |
| cancelled = m->scheduled_shutdown_action |
| && !IN_SET(m->scheduled_shutdown_action->handle, HANDLE_IGNORE, _HANDLE_ACTION_INVALID); |
| if (!cancelled) |
| return sd_bus_reply_method_return(message, "b", false); |
| |
| a = m->scheduled_shutdown_action; |
| if (!a->polkit_action) |
| return sd_bus_error_set(error, SD_BUS_ERROR_AUTH_FAILED, "Unsupported shutdown type"); |
| |
| r = bus_verify_polkit_async( |
| message, |
| CAP_SYS_BOOT, |
| a->polkit_action, |
| NULL, |
| false, |
| UID_INVALID, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| if (m->enable_wall_messages) { |
| _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
| const char *tty = NULL; |
| uid_t uid = 0; |
| |
| r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_AUGMENT|SD_BUS_CREDS_TTY|SD_BUS_CREDS_UID, &creds); |
| if (r >= 0) { |
| (void) sd_bus_creds_get_uid(creds, &uid); |
| (void) sd_bus_creds_get_tty(creds, &tty); |
| } |
| |
| _cleanup_free_ char *username = uid_to_name(uid); |
| |
| log_struct(LOG_INFO, |
| LOG_MESSAGE("System shutdown has been cancelled"), |
| "ACTION=%s", handle_action_to_string(a->handle), |
| "MESSAGE_ID=" SD_MESSAGE_SHUTDOWN_CANCELED_STR, |
| username ? "OPERATOR=%s" : NULL, username); |
| |
| utmp_wall("System shutdown has been cancelled", |
| username, tty, logind_wall_tty_filter, m); |
| } |
| |
| reset_scheduled_shutdown(m); |
| |
| return sd_bus_reply_method_return(message, "b", true); |
| } |
| |
| static int method_can_shutdown_or_sleep( |
| Manager *m, |
| sd_bus_message *message, |
| const HandleActionData *a, |
| sd_bus_error *error) { |
| |
| _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
| bool multiple_sessions, challenge, blocked; |
| const char *result = NULL; |
| uid_t uid; |
| int r; |
| |
| assert(m); |
| assert(message); |
| assert(a); |
| |
| if (a->sleep_operation >= 0) { |
| r = can_sleep(a->sleep_operation); |
| if (IN_SET(r, 0, -ENOSPC)) |
| return sd_bus_reply_method_return(message, "s", "na"); |
| if (r < 0) |
| return r; |
| } |
| |
| r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_creds_get_euid(creds, &uid); |
| if (r < 0) |
| return r; |
| |
| r = have_multiple_sessions(m, uid); |
| if (r < 0) |
| return r; |
| |
| multiple_sessions = r > 0; |
| blocked = manager_is_inhibited(m, a->inhibit_what, INHIBIT_BLOCK, NULL, false, true, uid, NULL); |
| |
| HandleAction handle = handle_action_from_string(sleep_operation_to_string(a->sleep_operation)); |
| if (handle >= 0) { |
| const char *target; |
| |
| target = handle_action_lookup(handle)->target; |
| if (target) { |
| _cleanup_free_ char *load_state = NULL; |
| |
| r = unit_load_state(m->bus, target, &load_state); |
| if (r < 0) |
| return r; |
| |
| if (!streq(load_state, "loaded")) { |
| result = "no"; |
| goto finish; |
| } |
| } |
| } |
| |
| if (multiple_sessions) { |
| r = bus_test_polkit(message, CAP_SYS_BOOT, a->polkit_action_multiple_sessions, NULL, UID_INVALID, &challenge, error); |
| if (r < 0) |
| return r; |
| |
| if (r > 0) |
| result = "yes"; |
| else if (challenge) |
| result = "challenge"; |
| else |
| result = "no"; |
| } |
| |
| if (blocked) { |
| r = bus_test_polkit(message, CAP_SYS_BOOT, a->polkit_action_ignore_inhibit, NULL, UID_INVALID, &challenge, error); |
| if (r < 0) |
| return r; |
| |
| if (r > 0) { |
| if (!result) |
| result = "yes"; |
| } else if (challenge) { |
| if (!result || streq(result, "yes")) |
| result = "challenge"; |
| } else |
| result = "no"; |
| } |
| |
| if (!multiple_sessions && !blocked) { |
| /* If neither inhibit nor multiple sessions |
| * apply then just check the normal policy */ |
| |
| r = bus_test_polkit(message, CAP_SYS_BOOT, a->polkit_action, NULL, UID_INVALID, &challenge, error); |
| if (r < 0) |
| return r; |
| |
| if (r > 0) |
| result = "yes"; |
| else if (challenge) |
| result = "challenge"; |
| else |
| result = "no"; |
| } |
| |
| finish: |
| return sd_bus_reply_method_return(message, "s", result); |
| } |
| |
| static int method_can_poweroff(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_can_shutdown_or_sleep( |
| m, message, handle_action_lookup(HANDLE_POWEROFF), |
| error); |
| } |
| |
| static int method_can_reboot(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_can_shutdown_or_sleep( |
| m, message, handle_action_lookup(HANDLE_REBOOT), |
| error); |
| } |
| |
| static int method_can_halt(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_can_shutdown_or_sleep( |
| m, message, handle_action_lookup(HANDLE_HALT), |
| error); |
| } |
| |
| static int method_can_suspend(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_can_shutdown_or_sleep( |
| m, message, handle_action_lookup(HANDLE_SUSPEND), |
| error); |
| } |
| |
| static int method_can_hibernate(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_can_shutdown_or_sleep( |
| m, message, handle_action_lookup(HANDLE_HIBERNATE), |
| error); |
| } |
| |
| static int method_can_hybrid_sleep(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_can_shutdown_or_sleep( |
| m, message, handle_action_lookup(HANDLE_HYBRID_SLEEP), |
| error); |
| } |
| |
| static int method_can_suspend_then_hibernate(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = userdata; |
| |
| return method_can_shutdown_or_sleep( |
| m, message, handle_action_lookup(HANDLE_SUSPEND_THEN_HIBERNATE), |
| error); |
| } |
| |
| static int property_get_reboot_parameter( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| _cleanup_free_ char *parameter = NULL; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(userdata); |
| |
| r = read_reboot_parameter(¶meter); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_message_append(reply, "s", parameter); |
| } |
| |
| static int method_set_reboot_parameter( |
| sd_bus_message *message, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Manager *m = ASSERT_PTR(userdata); |
| const char *arg; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "s", &arg); |
| if (r < 0) |
| return r; |
| |
| r = detect_container(); |
| if (r < 0) |
| return r; |
| if (r > 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, |
| "Reboot parameter not supported in containers, refusing."); |
| |
| r = bus_verify_polkit_async(message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.set-reboot-parameter", |
| NULL, |
| false, |
| UID_INVALID, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| r = update_reboot_parameter_and_warn(arg, false); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_can_reboot_parameter( |
| sd_bus_message *message, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| _unused_ Manager *m = ASSERT_PTR(userdata); |
| int r; |
| |
| assert(message); |
| |
| r = detect_container(); |
| if (r < 0) |
| return r; |
| if (r > 0) /* Inside containers, specifying a reboot parameter, doesn't make much sense */ |
| return sd_bus_reply_method_return(message, "s", "na"); |
| |
| return return_test_polkit( |
| message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.set-reboot-parameter", |
| NULL, |
| UID_INVALID, |
| error); |
| } |
| |
| static int property_get_reboot_to_firmware_setup( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(userdata); |
| |
| r = getenv_bool("SYSTEMD_REBOOT_TO_FIRMWARE_SETUP"); |
| if (r == -ENXIO) { |
| /* EFI case: let's see what is currently configured in the EFI variables */ |
| r = efi_get_reboot_to_firmware(); |
| if (r < 0 && r != -EOPNOTSUPP) |
| log_warning_errno(r, "Failed to determine reboot-to-firmware-setup state: %m"); |
| } else if (r < 0) |
| log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_FIRMWARE_SETUP: %m"); |
| else if (r > 0) { |
| /* Non-EFI case: let's see whether /run/systemd/reboot-to-firmware-setup exists. */ |
| if (access("/run/systemd/reboot-to-firmware-setup", F_OK) < 0) { |
| if (errno != ENOENT) |
| log_warning_errno(errno, "Failed to check whether /run/systemd/reboot-to-firmware-setup exists: %m"); |
| |
| r = false; |
| } else |
| r = true; |
| } |
| |
| return sd_bus_message_append(reply, "b", r > 0); |
| } |
| |
| static int method_set_reboot_to_firmware_setup( |
| sd_bus_message *message, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Manager *m = ASSERT_PTR(userdata); |
| bool use_efi; |
| int b, r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "b", &b); |
| if (r < 0) |
| return r; |
| |
| r = getenv_bool("SYSTEMD_REBOOT_TO_FIRMWARE_SETUP"); |
| if (r == -ENXIO) { |
| /* EFI case: let's see what the firmware supports */ |
| |
| r = efi_reboot_to_firmware_supported(); |
| if (r == -EOPNOTSUPP) |
| return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Firmware does not support boot into firmware."); |
| if (r < 0) |
| return r; |
| |
| use_efi = true; |
| |
| } else if (r <= 0) { |
| /* non-EFI case: $SYSTEMD_REBOOT_TO_FIRMWARE_SETUP is set to off */ |
| |
| if (r < 0) |
| log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_FIRMWARE_SETUP: %m"); |
| |
| return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Firmware does not support boot into firmware."); |
| } else |
| /* non-EFI case: $SYSTEMD_REBOOT_TO_FIRMWARE_SETUP is set to on */ |
| use_efi = false; |
| |
| r = bus_verify_polkit_async(message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.set-reboot-to-firmware-setup", |
| NULL, |
| false, |
| UID_INVALID, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| if (use_efi) { |
| r = efi_set_reboot_to_firmware(b); |
| if (r < 0) |
| return r; |
| } else { |
| if (b) { |
| r = touch("/run/systemd/reboot-to-firmware-setup"); |
| if (r < 0) |
| return r; |
| } else { |
| if (unlink("/run/systemd/reboot-to-firmware-setup") < 0 && errno != ENOENT) |
| return -errno; |
| } |
| } |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_can_reboot_to_firmware_setup( |
| sd_bus_message *message, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| _unused_ Manager *m = ASSERT_PTR(userdata); |
| int r; |
| |
| assert(message); |
| |
| r = getenv_bool("SYSTEMD_REBOOT_TO_FIRMWARE_SETUP"); |
| if (r == -ENXIO) { |
| /* EFI case: let's see what the firmware supports */ |
| |
| r = efi_reboot_to_firmware_supported(); |
| if (r < 0) { |
| if (r != -EOPNOTSUPP) |
| log_warning_errno(r, "Failed to determine whether reboot to firmware is supported: %m"); |
| |
| return sd_bus_reply_method_return(message, "s", "na"); |
| } |
| |
| } else if (r <= 0) { |
| /* Non-EFI case: let's trust $SYSTEMD_REBOOT_TO_FIRMWARE_SETUP */ |
| |
| if (r < 0) |
| log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_FIRMWARE_SETUP: %m"); |
| |
| return sd_bus_reply_method_return(message, "s", "na"); |
| } |
| |
| return return_test_polkit( |
| message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.set-reboot-to-firmware-setup", |
| NULL, |
| UID_INVALID, |
| error); |
| } |
| |
| static int property_get_reboot_to_boot_loader_menu( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| uint64_t x = UINT64_MAX; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(userdata); |
| |
| r = getenv_bool("SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU"); |
| if (r == -ENXIO) { |
| /* EFI case: returns the current value of LoaderConfigTimeoutOneShot. Three cases are distinguished: |
| * |
| * 1. Variable not set, boot into boot loader menu is not enabled (we return UINT64_MAX to the user) |
| * 2. Variable set to "0", boot into boot loader menu is enabled with no timeout (we return 0 to the user) |
| * 3. Variable set to numeric value formatted in ASCII, boot into boot loader menu with the specified timeout in seconds |
| */ |
| |
| r = efi_loader_get_config_timeout_one_shot(&x); |
| if (r < 0) { |
| if (r != -ENOENT) |
| log_warning_errno(r, "Failed to read LoaderConfigTimeoutOneShot variable, ignoring: %m"); |
| } |
| |
| } else if (r < 0) |
| log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU: %m"); |
| else if (r > 0) { |
| _cleanup_free_ char *v = NULL; |
| |
| /* Non-EFI case, let's process /run/systemd/reboot-to-boot-loader-menu. */ |
| |
| r = read_one_line_file("/run/systemd/reboot-to-boot-loader-menu", &v); |
| if (r < 0) { |
| if (r != -ENOENT) |
| log_warning_errno(r, "Failed to read /run/systemd/reboot-to-boot-loader-menu: %m"); |
| } else { |
| r = safe_atou64(v, &x); |
| if (r < 0) |
| log_warning_errno(r, "Failed to parse /run/systemd/reboot-to-boot-loader-menu: %m"); |
| } |
| } |
| |
| return sd_bus_message_append(reply, "t", x); |
| } |
| |
| static int method_set_reboot_to_boot_loader_menu( |
| sd_bus_message *message, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Manager *m = ASSERT_PTR(userdata); |
| bool use_efi; |
| uint64_t x; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "t", &x); |
| if (r < 0) |
| return r; |
| |
| r = getenv_bool("SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU"); |
| if (r == -ENXIO) { |
| uint64_t features; |
| |
| /* EFI case: let's see if booting into boot loader menu is supported. */ |
| |
| r = efi_loader_get_features(&features); |
| if (r < 0) |
| log_warning_errno(r, "Failed to determine whether reboot to boot loader menu is supported: %m"); |
| if (r < 0 || !FLAGS_SET(features, EFI_LOADER_FEATURE_CONFIG_TIMEOUT_ONE_SHOT)) |
| return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Boot loader does not support boot into boot loader menu."); |
| |
| use_efi = true; |
| |
| } else if (r <= 0) { |
| /* non-EFI case: $SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU is set to off */ |
| |
| if (r < 0) |
| log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU: %m"); |
| |
| return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Boot loader does not support boot into boot loader menu."); |
| } else |
| /* non-EFI case: $SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU is set to on */ |
| use_efi = false; |
| |
| r = bus_verify_polkit_async(message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.set-reboot-to-boot-loader-menu", |
| NULL, |
| false, |
| UID_INVALID, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| if (use_efi) { |
| if (x == UINT64_MAX) |
| r = efi_set_variable(EFI_LOADER_VARIABLE(LoaderConfigTimeoutOneShot), NULL, 0); |
| else { |
| char buf[DECIMAL_STR_MAX(uint64_t) + 1]; |
| xsprintf(buf, "%" PRIu64, DIV_ROUND_UP(x, USEC_PER_SEC)); /* second granularity */ |
| |
| r = efi_set_variable_string(EFI_LOADER_VARIABLE(LoaderConfigTimeoutOneShot), buf); |
| } |
| if (r < 0) |
| return r; |
| } else { |
| if (x == UINT64_MAX) { |
| if (unlink("/run/systemd/reboot-to-boot-loader-menu") < 0 && errno != ENOENT) |
| return -errno; |
| } else { |
| char buf[DECIMAL_STR_MAX(uint64_t) + 1]; |
| |
| xsprintf(buf, "%" PRIu64, x); /* µs granularity */ |
| |
| r = write_string_file_atomic_label("/run/systemd/reboot-to-boot-loader-menu", buf); |
| if (r < 0) |
| return r; |
| } |
| } |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_can_reboot_to_boot_loader_menu( |
| sd_bus_message *message, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| _unused_ Manager *m = ASSERT_PTR(userdata); |
| int r; |
| |
| assert(message); |
| |
| r = getenv_bool("SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU"); |
| if (r == -ENXIO) { |
| uint64_t features = 0; |
| |
| /* EFI case, let's see if booting into boot loader menu is supported. */ |
| |
| r = efi_loader_get_features(&features); |
| if (r < 0) |
| log_warning_errno(r, "Failed to determine whether reboot to boot loader menu is supported: %m"); |
| if (r < 0 || !FLAGS_SET(features, EFI_LOADER_FEATURE_CONFIG_TIMEOUT_ONE_SHOT)) |
| return sd_bus_reply_method_return(message, "s", "na"); |
| |
| } else if (r <= 0) { |
| /* Non-EFI case: let's trust $SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU */ |
| |
| if (r < 0) |
| log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_BOOT_LOADER_MENU: %m"); |
| |
| return sd_bus_reply_method_return(message, "s", "na"); |
| } |
| |
| return return_test_polkit( |
| message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.set-reboot-to-boot-loader-menu", |
| NULL, |
| UID_INVALID, |
| error); |
| } |
| |
| static int property_get_reboot_to_boot_loader_entry( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| _cleanup_free_ char *v = NULL; |
| Manager *m = ASSERT_PTR(userdata); |
| const char *x = NULL; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| |
| r = getenv_bool("SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY"); |
| if (r == -ENXIO) { |
| /* EFI case: let's read the LoaderEntryOneShot variable */ |
| |
| r = efi_loader_update_entry_one_shot_cache(&m->efi_loader_entry_one_shot, &m->efi_loader_entry_one_shot_stat); |
| if (r < 0) { |
| if (r != -ENOENT) |
| log_warning_errno(r, "Failed to read LoaderEntryOneShot variable, ignoring: %m"); |
| } else |
| x = m->efi_loader_entry_one_shot; |
| |
| } else if (r < 0) |
| log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY: %m"); |
| else if (r > 0) { |
| |
| /* Non-EFI case, let's process /run/systemd/reboot-to-boot-loader-entry. */ |
| |
| r = read_one_line_file("/run/systemd/reboot-to-boot-loader-entry", &v); |
| if (r < 0) { |
| if (r != -ENOENT) |
| log_warning_errno(r, "Failed to read /run/systemd/reboot-to-boot-loader-entry, ignoring: %m"); |
| } else if (!efi_loader_entry_name_valid(v)) |
| log_warning("/run/systemd/reboot-to-boot-loader-entry is not valid, ignoring."); |
| else |
| x = v; |
| } |
| |
| return sd_bus_message_append(reply, "s", x); |
| } |
| |
| static int boot_loader_entry_exists(Manager *m, const char *id) { |
| _cleanup_(boot_config_free) BootConfig config = BOOT_CONFIG_NULL; |
| int r; |
| |
| assert(m); |
| assert(id); |
| |
| r = boot_config_load_auto(&config, NULL, NULL); |
| if (r < 0 && r != -ENOKEY) /* don't complain if no GPT is found, hence skip ENOKEY */ |
| return r; |
| |
| r = manager_read_efi_boot_loader_entries(m); |
| if (r >= 0) |
| (void) boot_config_augment_from_loader(&config, m->efi_boot_loader_entries, /* auto_only= */ true); |
| |
| return !!boot_config_find_entry(&config, id); |
| } |
| |
| static int method_set_reboot_to_boot_loader_entry( |
| sd_bus_message *message, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Manager *m = ASSERT_PTR(userdata); |
| bool use_efi; |
| const char *v; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "s", &v); |
| if (r < 0) |
| return r; |
| |
| if (isempty(v)) |
| v = NULL; |
| else if (efi_loader_entry_name_valid(v)) { |
| r = boot_loader_entry_exists(m, v); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Boot loader entry '%s' is not known.", v); |
| } else |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Boot loader entry name '%s' is not valid, refusing.", v); |
| |
| r = getenv_bool("SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY"); |
| if (r == -ENXIO) { |
| uint64_t features; |
| |
| /* EFI case: let's see if booting into boot loader entry is supported. */ |
| |
| r = efi_loader_get_features(&features); |
| if (r < 0) |
| log_warning_errno(r, "Failed to determine whether reboot into boot loader entry is supported: %m"); |
| if (r < 0 || !FLAGS_SET(features, EFI_LOADER_FEATURE_ENTRY_ONESHOT)) |
| return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Loader does not support boot into boot loader entry."); |
| |
| use_efi = true; |
| |
| } else if (r <= 0) { |
| /* non-EFI case: $SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY is set to off */ |
| |
| if (r < 0) |
| log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY: %m"); |
| |
| return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Loader does not support boot into boot loader entry."); |
| } else |
| /* non-EFI case: $SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY is set to on */ |
| use_efi = false; |
| |
| r = bus_verify_polkit_async(message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.set-reboot-to-boot-loader-entry", |
| NULL, |
| false, |
| UID_INVALID, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| if (use_efi) { |
| if (isempty(v)) |
| /* Delete item */ |
| r = efi_set_variable(EFI_LOADER_VARIABLE(LoaderEntryOneShot), NULL, 0); |
| else |
| r = efi_set_variable_string(EFI_LOADER_VARIABLE(LoaderEntryOneShot), v); |
| if (r < 0) |
| return r; |
| } else { |
| if (isempty(v)) { |
| if (unlink("/run/systemd/reboot-to-boot-loader-entry") < 0 && errno != ENOENT) |
| return -errno; |
| } else { |
| r = write_string_file_atomic_label("/run/systemd/reboot-boot-to-loader-entry", v); |
| if (r < 0) |
| return r; |
| } |
| } |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_can_reboot_to_boot_loader_entry( |
| sd_bus_message *message, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| _unused_ Manager *m = ASSERT_PTR(userdata); |
| int r; |
| |
| assert(message); |
| |
| r = getenv_bool("SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY"); |
| if (r == -ENXIO) { |
| uint64_t features = 0; |
| |
| /* EFI case, let's see if booting into boot loader entry is supported. */ |
| |
| r = efi_loader_get_features(&features); |
| if (r < 0) |
| log_warning_errno(r, "Failed to determine whether reboot to boot loader entry is supported: %m"); |
| if (r < 0 || !FLAGS_SET(features, EFI_LOADER_FEATURE_ENTRY_ONESHOT)) |
| return sd_bus_reply_method_return(message, "s", "na"); |
| |
| } else if (r <= 0) { |
| /* Non-EFI case: let's trust $SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY */ |
| |
| if (r < 0) |
| log_warning_errno(r, "Failed to parse $SYSTEMD_REBOOT_TO_BOOT_LOADER_ENTRY: %m"); |
| |
| return sd_bus_reply_method_return(message, "s", "na"); |
| } |
| |
| return return_test_polkit( |
| message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.set-reboot-to-boot-loader-entry", |
| NULL, |
| UID_INVALID, |
| error); |
| } |
| |
| static int property_get_boot_loader_entries( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| _cleanup_(boot_config_free) BootConfig config = BOOT_CONFIG_NULL; |
| Manager *m = ASSERT_PTR(userdata); |
| size_t i; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| |
| r = boot_config_load_auto(&config, NULL, NULL); |
| if (r < 0 && r != -ENOKEY) /* don't complain if there's no GPT found */ |
| return r; |
| |
| r = manager_read_efi_boot_loader_entries(m); |
| if (r >= 0) |
| (void) boot_config_augment_from_loader(&config, m->efi_boot_loader_entries, /* auto_only= */ true); |
| |
| r = sd_bus_message_open_container(reply, 'a', "s"); |
| if (r < 0) |
| return r; |
| |
| for (i = 0; i < config.n_entries; i++) { |
| BootEntry *e = config.entries + i; |
| |
| r = sd_bus_message_append(reply, "s", e->id); |
| if (r < 0) |
| return r; |
| } |
| |
| return sd_bus_message_close_container(reply); |
| } |
| |
| static int method_set_wall_message( |
| sd_bus_message *message, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| int r; |
| Manager *m = ASSERT_PTR(userdata); |
| char *wall_message; |
| int enable_wall_messages; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "sb", &wall_message, &enable_wall_messages); |
| if (r < 0) |
| return r; |
| |
| if (strlen(wall_message) > WALL_MESSAGE_MAX) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Wall message too long, maximum permitted length is %u characters.", |
| WALL_MESSAGE_MAX); |
| |
| /* Short-circuit the operation if the desired state is already in place, to |
| * avoid an unnecessary polkit permission check. */ |
| if (streq_ptr(m->wall_message, empty_to_null(wall_message)) && |
| m->enable_wall_messages == enable_wall_messages) |
| goto done; |
| |
| r = bus_verify_polkit_async(message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.set-wall-message", |
| NULL, |
| false, |
| UID_INVALID, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* Will call us back */ |
| |
| 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; |
| |
| done: |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_inhibit(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _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 = -EBADF; |
| Manager *m = ASSERT_PTR(userdata); |
| InhibitMode mm; |
| InhibitWhat w; |
| pid_t pid; |
| uid_t uid; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "ssss", &what, &who, &why, &mode); |
| if (r < 0) |
| return r; |
| |
| w = inhibit_what_from_string(what); |
| if (w <= 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Invalid what specification %s", what); |
| |
| mm = inhibit_mode_from_string(mode); |
| if (mm < 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Invalid mode specification %s", mode); |
| |
| /* Delay is only supported for shutdown/sleep */ |
| if (mm == INHIBIT_DELAY && (w & ~(INHIBIT_SHUTDOWN|INHIBIT_SLEEP))) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Delay inhibitors only supported for shutdown and sleep"); |
| |
| /* Don't allow taking delay locks while we are already |
| * executing the operation. We shouldn't create the impression |
| * that the lock was successful if the machine is about to go |
| * down/suspend any moment. */ |
| if (m->delayed_action && m->delayed_action->inhibit_what & w) |
| return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, |
| "The operation inhibition has been requested for is already running"); |
| |
| r = bus_verify_polkit_async( |
| message, |
| CAP_SYS_BOOT, |
| w == INHIBIT_SHUTDOWN ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-shutdown" : "org.freedesktop.login1.inhibit-delay-shutdown") : |
| w == INHIBIT_SLEEP ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-sleep" : "org.freedesktop.login1.inhibit-delay-sleep") : |
| w == INHIBIT_IDLE ? "org.freedesktop.login1.inhibit-block-idle" : |
| w == INHIBIT_HANDLE_POWER_KEY ? "org.freedesktop.login1.inhibit-handle-power-key" : |
| w == INHIBIT_HANDLE_SUSPEND_KEY ? "org.freedesktop.login1.inhibit-handle-suspend-key" : |
| w == INHIBIT_HANDLE_REBOOT_KEY ? "org.freedesktop.login1.inhibit-handle-reboot-key" : |
| w == INHIBIT_HANDLE_HIBERNATE_KEY ? "org.freedesktop.login1.inhibit-handle-hibernate-key" : |
| "org.freedesktop.login1.inhibit-handle-lid-switch", |
| NULL, |
| false, |
| UID_INVALID, |
| &m->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ |
| |
| r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID|SD_BUS_CREDS_PID, &creds); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_creds_get_euid(creds, &uid); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_creds_get_pid(creds, &pid); |
| 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); |
| |
| if (asprintf(&id, "%lu", ++m->inhibit_counter) < 0) |
| return -ENOMEM; |
| |
| } while (hashmap_get(m->inhibitors, id)); |
| |
| _cleanup_(inhibitor_freep) Inhibitor *i = NULL; |
| r = manager_add_inhibitor(m, id, &i); |
| if (r < 0) |
| return r; |
| |
| i->what = w; |
| i->mode = mm; |
| i->pid = pid; |
| i->uid = uid; |
| i->why = strdup(why); |
| i->who = strdup(who); |
| |
| if (!i->why || !i->who) |
| return -ENOMEM; |
| |
| fifo_fd = inhibitor_create_fifo(i); |
| if (fifo_fd < 0) |
| return fifo_fd; |
| |
| r = inhibitor_start(i); |
| if (r < 0) |
| return r; |
| TAKE_PTR(i); |
| |
| return sd_bus_reply_method_return(message, "h", fifo_fd); |
| } |
| |
| static const sd_bus_vtable manager_vtable[] = { |
| SD_BUS_VTABLE_START(0), |
| |
| SD_BUS_WRITABLE_PROPERTY("EnableWallMessages", "b", bus_property_get_bool, bus_property_set_bool, 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), |
| 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", bus_property_get_bool, offsetof(Manager, kill_user_processes), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("RebootParameter", "s", property_get_reboot_parameter, 0, 0), |
| SD_BUS_PROPERTY("RebootToFirmwareSetup", "b", property_get_reboot_to_firmware_setup, 0, 0), |
| SD_BUS_PROPERTY("RebootToBootLoaderMenu", "t", property_get_reboot_to_boot_loader_menu, 0, 0), |
| SD_BUS_PROPERTY("RebootToBootLoaderEntry", "s", property_get_reboot_to_boot_loader_entry, 0, 0), |
| SD_BUS_PROPERTY("BootLoaderEntries", "as", property_get_boot_loader_entries, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("BlockInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("DelayInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("InhibitDelayMaxUSec", "t", NULL, offsetof(Manager, inhibit_delay_max), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("UserStopDelayUSec", "t", NULL, offsetof(Manager, user_stop_delay), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandlePowerKey", "s", property_get_handle_action, offsetof(Manager, handle_power_key), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandlePowerKeyLongPress", "s", property_get_handle_action, offsetof(Manager, handle_power_key_long_press), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandleRebootKey", "s", property_get_handle_action, offsetof(Manager, handle_reboot_key), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandleRebootKeyLongPress", "s", property_get_handle_action, offsetof(Manager, handle_reboot_key_long_press), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandleSuspendKey", "s", property_get_handle_action, offsetof(Manager, handle_suspend_key), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandleSuspendKeyLongPress", "s", property_get_handle_action, offsetof(Manager, handle_suspend_key_long_press), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandleHibernateKey", "s", property_get_handle_action, offsetof(Manager, handle_hibernate_key), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandleHibernateKeyLongPress", "s", property_get_handle_action, offsetof(Manager, handle_hibernate_key_long_press), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandleLidSwitch", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandleLidSwitchExternalPower", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch_ep), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HandleLidSwitchDocked", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch_docked), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("HoldoffTimeoutUSec", "t", NULL, offsetof(Manager, holdoff_timeout_usec), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("IdleAction", "s", property_get_handle_action, offsetof(Manager, idle_action), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("IdleActionUSec", "t", NULL, offsetof(Manager, idle_action_usec), SD_BUS_VTABLE_PROPERTY_CONST), |
| 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_PROPERTY("LidClosed", "b", property_get_lid_closed, 0, 0), |
| SD_BUS_PROPERTY("OnExternalPower", "b", property_get_on_external_power, 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", NULL, offsetof(Manager, runtime_dir_size), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("RuntimeDirectoryInodesMax", "t", NULL, offsetof(Manager, runtime_dir_inodes), 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_hashmap_size, offsetof(Manager, inhibitors), 0), |
| SD_BUS_PROPERTY("SessionsMax", "t", NULL, offsetof(Manager, sessions_max), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("NCurrentSessions", "t", property_get_hashmap_size, offsetof(Manager, sessions), 0), |
| SD_BUS_PROPERTY("UserTasksMax", "t", property_get_compat_user_tasks_max, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN), |
| SD_BUS_PROPERTY("StopIdleSessionUSec", "t", NULL, offsetof(Manager, stop_idle_session_usec), SD_BUS_VTABLE_PROPERTY_CONST), |
| |
| SD_BUS_METHOD_WITH_ARGS("GetSession", |
| SD_BUS_ARGS("s", session_id), |
| SD_BUS_RESULT("o", object_path), |
| method_get_session, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("GetSessionByPID", |
| SD_BUS_ARGS("u", pid), |
| SD_BUS_RESULT("o", object_path), |
| method_get_session_by_pid, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("GetUser", |
| SD_BUS_ARGS("u", uid), |
| SD_BUS_RESULT("o", object_path), |
| method_get_user, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("GetUserByPID", |
| SD_BUS_ARGS("u", pid), |
| SD_BUS_RESULT("o", object_path), |
| method_get_user_by_pid, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("GetSeat", |
| SD_BUS_ARGS("s", seat_id), |
| SD_BUS_RESULT("o", object_path), |
| method_get_seat, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("ListSessions", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("a(susso)", sessions), |
| method_list_sessions, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("ListUsers", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("a(uso)", users), |
| method_list_users, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("ListSeats", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("a(so)", seats), |
| method_list_seats, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("ListInhibitors", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("a(ssssuu)", inhibitors), |
| method_list_inhibitors, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("CreateSession", |
| SD_BUS_ARGS("u", uid, |
| "u", pid, |
| "s", service, |
| "s", type, |
| "s", class, |
| "s", desktop, |
| "s", seat_id, |
| "u", vtnr, |
| "s", tty, |
| "s", display, |
| "b", remote, |
| "s", remote_user, |
| "s", remote_host, |
| "a(sv)", properties), |
| SD_BUS_RESULT("s", session_id, |
| "o", object_path, |
| "s", runtime_path, |
| "h", fifo_fd, |
| "u", uid, |
| "s", seat_id, |
| "u", vtnr, |
| "b", existing), |
| method_create_session, |
| 0), |
| SD_BUS_METHOD_WITH_ARGS("ReleaseSession", |
| SD_BUS_ARGS("s", session_id), |
| SD_BUS_NO_RESULT, |
| method_release_session, |
| 0), |
| SD_BUS_METHOD_WITH_ARGS("ActivateSession", |
| SD_BUS_ARGS("s", session_id), |
| SD_BUS_NO_RESULT, |
| method_activate_session, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("ActivateSessionOnSeat", |
| SD_BUS_ARGS("s", session_id, "s", seat_id), |
| SD_BUS_NO_RESULT, |
| method_activate_session_on_seat, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("LockSession", |
| SD_BUS_ARGS("s", session_id), |
| SD_BUS_NO_RESULT, |
| method_lock_session, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("UnlockSession", |
| SD_BUS_ARGS("s", session_id), |
| SD_BUS_NO_RESULT, |
| method_lock_session, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("LockSessions", |
| NULL, |
| NULL, |
| method_lock_sessions, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("UnlockSessions", |
| NULL, |
| NULL, |
| method_lock_sessions, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("KillSession", |
| SD_BUS_ARGS("s", session_id, "s", who, "i", signal_number), |
| SD_BUS_NO_RESULT, |
| method_kill_session, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("KillUser", |
| SD_BUS_ARGS("u", uid, "i", signal_number), |
| SD_BUS_NO_RESULT, |
| method_kill_user, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("TerminateSession", |
| SD_BUS_ARGS("s", session_id), |
| SD_BUS_NO_RESULT, |
| method_terminate_session, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("TerminateUser", |
| SD_BUS_ARGS("u", uid), |
| SD_BUS_NO_RESULT, |
| method_terminate_user, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("TerminateSeat", |
| SD_BUS_ARGS("s", seat_id), |
| SD_BUS_NO_RESULT, |
| method_terminate_seat, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetUserLinger", |
| SD_BUS_ARGS("u", uid, "b", enable, "b", interactive), |
| SD_BUS_NO_RESULT, |
| method_set_user_linger, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("AttachDevice", |
| SD_BUS_ARGS("s", seat_id, "s", sysfs_path, "b", interactive), |
| SD_BUS_NO_RESULT, |
| method_attach_device, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("FlushDevices", |
| SD_BUS_ARGS("b", interactive), |
| SD_BUS_NO_RESULT, |
| method_flush_devices, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("PowerOff", |
| SD_BUS_ARGS("b", interactive), |
| SD_BUS_NO_RESULT, |
| method_poweroff, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("PowerOffWithFlags", |
| SD_BUS_ARGS("t", flags), |
| SD_BUS_NO_RESULT, |
| method_poweroff, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("Reboot", |
| SD_BUS_ARGS("b", interactive), |
| SD_BUS_NO_RESULT, |
| method_reboot, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("RebootWithFlags", |
| SD_BUS_ARGS("t", flags), |
| SD_BUS_NO_RESULT, |
| method_reboot, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("Halt", |
| SD_BUS_ARGS("b", interactive), |
| SD_BUS_NO_RESULT, |
| method_halt, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("HaltWithFlags", |
| SD_BUS_ARGS("t", flags), |
| SD_BUS_NO_RESULT, |
| method_halt, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("Suspend", |
| SD_BUS_ARGS("b", interactive), |
| SD_BUS_NO_RESULT, |
| method_suspend, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SuspendWithFlags", |
| SD_BUS_ARGS("t", flags), |
| SD_BUS_NO_RESULT, |
| method_suspend, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("Hibernate", |
| SD_BUS_ARGS("b", interactive), |
| SD_BUS_NO_RESULT, |
| method_hibernate, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("HibernateWithFlags", |
| SD_BUS_ARGS("t", flags), |
| SD_BUS_NO_RESULT, |
| method_hibernate, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("HybridSleep", |
| SD_BUS_ARGS("b", interactive), |
| SD_BUS_NO_RESULT, |
| method_hybrid_sleep, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("HybridSleepWithFlags", |
| SD_BUS_ARGS("t", flags), |
| SD_BUS_NO_RESULT, |
| method_hybrid_sleep, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SuspendThenHibernate", |
| SD_BUS_ARGS("b", interactive), |
| SD_BUS_NO_RESULT, |
| method_suspend_then_hibernate, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SuspendThenHibernateWithFlags", |
| SD_BUS_ARGS("t", flags), |
| SD_BUS_NO_RESULT, |
| method_suspend_then_hibernate, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("CanPowerOff", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("s", result), |
| method_can_poweroff, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("CanReboot", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("s", result), |
| method_can_reboot, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("CanHalt", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("s", result), |
| method_can_halt, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("CanSuspend", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("s", result), |
| method_can_suspend, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("CanHibernate", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("s", result), |
| method_can_hibernate, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("CanHybridSleep", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("s", result), |
| method_can_hybrid_sleep, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("CanSuspendThenHibernate", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("s", result), |
| method_can_suspend_then_hibernate, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("ScheduleShutdown", |
| SD_BUS_ARGS("s", type, "t", usec), |
| SD_BUS_NO_RESULT, |
| method_schedule_shutdown, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("CancelScheduledShutdown", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("b", cancelled), |
| method_cancel_scheduled_shutdown, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("Inhibit", |
| SD_BUS_ARGS("s", what, "s", who, "s", why, "s", mode), |
| SD_BUS_RESULT("h", pipe_fd), |
| method_inhibit, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("CanRebootParameter", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("s", result), |
| method_can_reboot_parameter, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetRebootParameter", |
| SD_BUS_ARGS("s", parameter), |
| SD_BUS_NO_RESULT, |
| method_set_reboot_parameter, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("CanRebootToFirmwareSetup", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("s", result), |
| method_can_reboot_to_firmware_setup, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetRebootToFirmwareSetup", |
| SD_BUS_ARGS("b", enable), |
| SD_BUS_NO_RESULT, |
| method_set_reboot_to_firmware_setup, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("CanRebootToBootLoaderMenu", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("s", result), |
| method_can_reboot_to_boot_loader_menu, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetRebootToBootLoaderMenu", |
| SD_BUS_ARGS("t", timeout), |
| SD_BUS_NO_RESULT, |
| method_set_reboot_to_boot_loader_menu, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("CanRebootToBootLoaderEntry", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("s", result), |
| method_can_reboot_to_boot_loader_entry, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetRebootToBootLoaderEntry", |
| SD_BUS_ARGS("s", boot_loader_entry), |
| SD_BUS_NO_RESULT, |
| method_set_reboot_to_boot_loader_entry, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetWallMessage", |
| SD_BUS_ARGS("s", wall_message, "b", enable), |
| SD_BUS_NO_RESULT, |
| method_set_wall_message, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| |
| SD_BUS_SIGNAL_WITH_ARGS("SessionNew", |
| SD_BUS_ARGS("s", session_id, "o", object_path), |
| 0), |
| SD_BUS_SIGNAL_WITH_ARGS("SessionRemoved", |
| SD_BUS_ARGS("s", session_id, "o", object_path), |
| 0), |
| SD_BUS_SIGNAL_WITH_ARGS("UserNew", |
| SD_BUS_ARGS("u", uid, "o", object_path), |
| 0), |
| SD_BUS_SIGNAL_WITH_ARGS("UserRemoved", |
| SD_BUS_ARGS("u", uid, "o", object_path), |
| 0), |
| SD_BUS_SIGNAL_WITH_ARGS("SeatNew", |
| SD_BUS_ARGS("s", seat_id, "o", object_path), |
| 0), |
| SD_BUS_SIGNAL_WITH_ARGS("SeatRemoved", |
| SD_BUS_ARGS("s", seat_id, "o", object_path), |
| 0), |
| SD_BUS_SIGNAL_WITH_ARGS("PrepareForShutdown", |
| SD_BUS_ARGS("b", start), |
| 0), |
| SD_BUS_SIGNAL_WITH_ARGS("PrepareForSleep", |
| SD_BUS_ARGS("b", start), |
| 0), |
| |
| SD_BUS_VTABLE_END |
| }; |
| |
| const BusObjectImplementation manager_object = { |
| "/org/freedesktop/login1", |
| "org.freedesktop.login1.Manager", |
| .vtables = BUS_VTABLES(manager_vtable), |
| .children = BUS_IMPLEMENTATIONS(&seat_object, |
| &session_object, |
| &user_object), |
| }; |
| |
| static int session_jobs_reply(Session *s, uint32_t jid, const char *unit, const char *result) { |
| assert(s); |
| assert(unit); |
| |
| if (!s->started) |
| return 0; |
| |
| if (result && !streq(result, "done")) { |
| _cleanup_(sd_bus_error_free) sd_bus_error e = SD_BUS_ERROR_NULL; |
| |
| sd_bus_error_setf(&e, BUS_ERROR_JOB_FAILED, |
| "Job %u for unit '%s' failed with '%s'", jid, unit, result); |
| return session_send_create_reply(s, &e); |
| } |
| |
| return session_send_create_reply(s, NULL); |
| } |
| |
| int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| const char *path, *result, *unit; |
| Manager *m = ASSERT_PTR(userdata); |
| Session *session; |
| uint32_t id; |
| User *user; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "uoss", &id, &path, &unit, &result); |
| if (r < 0) { |
| bus_log_parse_error(r); |
| return 0; |
| } |
| |
| if (m->action_job && streq(m->action_job, path)) { |
| assert(m->delayed_action); |
| log_info("Operation '%s' finished.", inhibit_what_to_string(m->delayed_action->inhibit_what)); |
| |
| /* Tell people that they now may take a lock again */ |
| (void) send_prepare_for(m, m->delayed_action->inhibit_what, false); |
| |
| m->action_job = mfree(m->action_job); |
| m->delayed_action = NULL; |
| return 0; |
| } |
| |
| session = hashmap_get(m->session_units, unit); |
| if (session) { |
| if (streq_ptr(path, session->scope_job)) { |
| session->scope_job = mfree(session->scope_job); |
| (void) session_jobs_reply(session, id, unit, result); |
| |
| session_save(session); |
| user_save(session->user); |
| } |
| |
| session_add_to_gc_queue(session); |
| } |
| |
| user = hashmap_get(m->user_units, unit); |
| if (user) { |
| if (streq_ptr(path, user->service_job)) { |
| user->service_job = mfree(user->service_job); |
| |
| LIST_FOREACH(sessions_by_user, s, user->sessions) |
| (void) session_jobs_reply(s, id, unit, NULL /* don't propagate user service failures to the client */); |
| |
| user_save(user); |
| } |
| |
| user_add_to_gc_queue(user); |
| } |
| |
| return 0; |
| } |
| |
| int match_unit_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| const char *path, *unit; |
| Manager *m = ASSERT_PTR(userdata); |
| Session *session; |
| User *user; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "so", &unit, &path); |
| if (r < 0) { |
| bus_log_parse_error(r); |
| return 0; |
| } |
| |
| session = hashmap_get(m->session_units, unit); |
| if (session) |
| session_add_to_gc_queue(session); |
| |
| user = hashmap_get(m->user_units, unit); |
| if (user) |
| user_add_to_gc_queue(user); |
| |
| return 0; |
| } |
| |
| int match_properties_changed(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_free_ char *unit = NULL; |
| Manager *m = ASSERT_PTR(userdata); |
| const char *path; |
| Session *session; |
| User *user; |
| int r; |
| |
| assert(message); |
| |
| path = sd_bus_message_get_path(message); |
| if (!path) |
| return 0; |
| |
| r = unit_name_from_dbus_path(path, &unit); |
| if (r == -EINVAL) /* not a unit */ |
| return 0; |
| if (r < 0) { |
| log_oom(); |
| return 0; |
| } |
| |
| session = hashmap_get(m->session_units, unit); |
| if (session) |
| session_add_to_gc_queue(session); |
| |
| user = hashmap_get(m->user_units, unit); |
| if (user) |
| user_add_to_gc_queue(user); |
| |
| return 0; |
| } |
| |
| int match_reloading(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Manager *m = ASSERT_PTR(userdata); |
| Session *session; |
| int b, r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "b", &b); |
| if (r < 0) { |
| bus_log_parse_error(r); |
| return 0; |
| } |
| |
| if (b) |
| return 0; |
| |
| /* systemd finished reloading, let's recheck all our sessions */ |
| log_debug("System manager has been reloaded, rechecking sessions..."); |
| |
| HASHMAP_FOREACH(session, m->sessions) |
| session_add_to_gc_queue(session); |
| |
| return 0; |
| } |
| |
| int manager_send_changed(Manager *manager, const char *property, ...) { |
| char **l; |
| |
| assert(manager); |
| |
| l = strv_from_stdarg_alloca(property); |
| |
| return sd_bus_emit_properties_changed_strv( |
| manager->bus, |
| "/org/freedesktop/login1", |
| "org.freedesktop.login1.Manager", |
| l); |
| } |
| |
| 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_scope( |
| Manager *manager, |
| const char *scope, |
| pid_t pid, |
| const char *slice, |
| const char *description, |
| char **wants, |
| char **after, |
| const char *requires_mounts_for, |
| sd_bus_message *more_properties, |
| sd_bus_error *error, |
| char **job) { |
| |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL; |
| int r; |
| |
| assert(manager); |
| assert(scope); |
| assert(pid > 1); |
| assert(job); |
| |
| r = bus_message_new_method_call(manager->bus, &m, bus_systemd_mgr, "StartTransientUnit"); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_append(m, "ss", strempty(scope), "fail"); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_open_container(m, 'a', "(sv)"); |
| if (r < 0) |
| return r; |
| |
| if (!isempty(slice)) { |
| r = sd_bus_message_append(m, "(sv)", "Slice", "s", slice); |
| if (r < 0) |
| return r; |
| } |
| |
| if (!isempty(description)) { |
| r = sd_bus_message_append(m, "(sv)", "Description", "s", description); |
| if (r < 0) |
| return r; |
| } |
| |
| STRV_FOREACH(i, wants) { |
| r = sd_bus_message_append(m, "(sv)", "Wants", "as", 1, *i); |
| if (r < 0) |
| return r; |
| } |
| |
| STRV_FOREACH(i, after) { |
| r = sd_bus_message_append(m, "(sv)", "After", "as", 1, *i); |
| if (r < 0) |
| return r; |
| } |
| |
| if (!empty_or_root(requires_mounts_for)) { |
| r = sd_bus_message_append(m, "(sv)", "RequiresMountsFor", "as", 1, requires_mounts_for); |
| if (r < 0) |
| return r; |
| } |
| |
| /* Make sure that the session shells are terminated with SIGHUP since bash and friends tend to ignore |
| * SIGTERM */ |
| r = sd_bus_message_append(m, "(sv)", "SendSIGHUP", "b", true); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, pid); |
| if (r < 0) |
| return r; |
| |
| /* For login session scopes, if a process is OOM killed by the kernel, *don't* terminate the rest of |
| the scope */ |
| r = sd_bus_message_append(m, "(sv)", "OOMPolicy", "s", "continue"); |
| if (r < 0) |
| return r; |
| |
| /* disable TasksMax= for the session scope, rely on the slice setting for it */ |
| r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", UINT64_MAX); |
| if (r < 0) |
| return bus_log_create_error(r); |
| |
| if (more_properties) { |
| /* If TasksMax also appears here, it will overwrite the default value set above */ |
| r = sd_bus_message_copy(m, more_properties, true); |
| if (r < 0) |
| return r; |
| } |
| |
| r = sd_bus_message_close_container(m); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_append(m, "a(sa(sv))", 0); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_call(manager->bus, m, 0, error, &reply); |
| if (r < 0) |
| return r; |
| |
| return strdup_job(reply, job); |
| } |
| |
| int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) { |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
| int r; |
| |
| assert(manager); |
| assert(unit); |
| assert(job); |
| |
| r = bus_call_method( |
| manager->bus, |
| bus_systemd_mgr, |
| "StartUnit", |
| error, |
| &reply, |
| "ss", unit, "replace"); |
| if (r < 0) |
| return r; |
| |
| return strdup_job(reply, job); |
| } |
| |
| int manager_stop_unit(Manager *manager, const char *unit, const char *job_mode, sd_bus_error *error, char **ret_job) { |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; |
| int r; |
| |
| assert(manager); |
| assert(unit); |
| assert(ret_job); |
| |
| r = bus_call_method( |
| manager->bus, |
| bus_systemd_mgr, |
| "StopUnit", |
| error, |
| &reply, |
| "ss", unit, job_mode ?: "fail"); |
| if (r < 0) { |
| if (sd_bus_error_has_names(error, BUS_ERROR_NO_SUCH_UNIT, |
| BUS_ERROR_LOAD_FAILED)) { |
| |
| *ret_job = NULL; |
| sd_bus_error_free(error); |
| return 0; |
| } |
| |
| return r; |
| } |
| |
| return strdup_job(reply, ret_job); |
| } |
| |
| int manager_abandon_scope(Manager *manager, const char *scope, sd_bus_error *ret_error) { |
| _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
| _cleanup_free_ char *path = NULL; |
| int r; |
| |
| assert(manager); |
| assert(scope); |
| |
| path = unit_dbus_path_from_name(scope); |
| if (!path) |
| return -ENOMEM; |
| |
| r = sd_bus_call_method( |
| manager->bus, |
| "org.freedesktop.systemd1", |
| path, |
| "org.freedesktop.systemd1.Scope", |
| "Abandon", |
| &error, |
| NULL, |
| NULL); |
| if (r < 0) { |
| if (sd_bus_error_has_names(&error, BUS_ERROR_NO_SUCH_UNIT, |
| BUS_ERROR_LOAD_FAILED, |
| BUS_ERROR_SCOPE_NOT_RUNNING)) |
| return 0; |
| |
| sd_bus_error_move(ret_error, &error); |
| return r; |
| } |
| |
| return 1; |
| } |
| |
| int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, sd_bus_error *error) { |
| assert(manager); |
| assert(unit); |
| |
| return bus_call_method( |
| manager->bus, |
| bus_systemd_mgr, |
| "KillUnit", |
| error, |
| NULL, |
| "ssi", unit, who == KILL_LEADER ? "main" : "all", signo); |
| } |
| |
| int manager_unit_is_active(Manager *manager, const char *unit, sd_bus_error *ret_error) { |
| _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; |
| |
| assert(manager); |
| assert(unit); |
| |
| path = unit_dbus_path_from_name(unit); |
| if (!path) |
| return -ENOMEM; |
| |
| r = sd_bus_get_property( |
| manager->bus, |
| "org.freedesktop.systemd1", |
| path, |
| "org.freedesktop.systemd1.Unit", |
| "ActiveState", |
| &error, |
| &reply, |
| "s"); |
| if (r < 0) { |
| /* systemd might have dropped off momentarily, let's |
| * not make this an error */ |
| if (sd_bus_error_has_names(&error, SD_BUS_ERROR_NO_REPLY, |
| SD_BUS_ERROR_DISCONNECTED)) |
| return true; |
| |
| /* If the unit is already unloaded then it's not |
| * active */ |
| if (sd_bus_error_has_names(&error, BUS_ERROR_NO_SUCH_UNIT, |
| BUS_ERROR_LOAD_FAILED)) |
| return false; |
| |
| sd_bus_error_move(ret_error, &error); |
| return r; |
| } |
| |
| r = sd_bus_message_read(reply, "s", &state); |
| if (r < 0) |
| return r; |
| |
| return !STR_IN_SET(state, "inactive", "failed"); |
| } |
| |
| int manager_job_is_active(Manager *manager, const char *path, sd_bus_error *ret_error) { |
| _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); |
| assert(path); |
| |
| r = sd_bus_get_property( |
| manager->bus, |
| "org.freedesktop.systemd1", |
| path, |
| "org.freedesktop.systemd1.Job", |
| "State", |
| &error, |
| &reply, |
| "s"); |
| if (r < 0) { |
| if (sd_bus_error_has_names(&error, SD_BUS_ERROR_NO_REPLY, |
| SD_BUS_ERROR_DISCONNECTED)) |
| return true; |
| |
| if (sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_OBJECT)) |
| return false; |
| |
| sd_bus_error_move(ret_error, &error); |
| return r; |
| } |
| |
| /* We don't actually care about the state really. The fact |
| * that we could read the job state is enough for us */ |
| |
| return true; |
| } |