| /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| |
| #include <errno.h> |
| |
| #include "alloc-util.h" |
| #include "bus-common-errors.h" |
| #include "bus-get-properties.h" |
| #include "bus-label.h" |
| #include "bus-polkit.h" |
| #include "bus-util.h" |
| #include "devnum-util.h" |
| #include "fd-util.h" |
| #include "logind-brightness.h" |
| #include "logind-dbus.h" |
| #include "logind-polkit.h" |
| #include "logind-seat-dbus.h" |
| #include "logind-session-dbus.h" |
| #include "logind-session-device.h" |
| #include "logind-session.h" |
| #include "logind-user-dbus.h" |
| #include "logind.h" |
| #include "missing_capability.h" |
| #include "path-util.h" |
| #include "signal-util.h" |
| #include "strv.h" |
| #include "user-util.h" |
| |
| static int property_get_user( |
| 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 *p = NULL; |
| Session *s = ASSERT_PTR(userdata); |
| |
| assert(bus); |
| assert(reply); |
| |
| p = user_bus_path(s->user); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_message_append(reply, "(uo)", (uint32_t) s->user->user_record->uid, p); |
| } |
| |
| static int property_get_name( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Session *s = ASSERT_PTR(userdata); |
| |
| assert(bus); |
| assert(reply); |
| |
| return sd_bus_message_append(reply, "s", s->user->user_record->user_name); |
| } |
| |
| static int property_get_seat( |
| 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 *p = NULL; |
| Session *s = ASSERT_PTR(userdata); |
| |
| assert(bus); |
| assert(reply); |
| |
| p = s->seat ? seat_bus_path(s->seat) : strdup("/"); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_message_append(reply, "(so)", s->seat ? s->seat->id : "", p); |
| } |
| |
| static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, session_type, SessionType); |
| static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_class, session_class, SessionClass); |
| static BUS_DEFINE_PROPERTY_GET(property_get_active, "b", Session, session_is_active); |
| static BUS_DEFINE_PROPERTY_GET2(property_get_state, "s", Session, session_get_state, session_state_to_string); |
| |
| 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) { |
| |
| Session *s = ASSERT_PTR(userdata); |
| |
| assert(bus); |
| assert(reply); |
| |
| return sd_bus_message_append(reply, "b", session_get_idle_hint(s, 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) { |
| |
| Session *s = ASSERT_PTR(userdata); |
| dual_timestamp t = DUAL_TIMESTAMP_NULL; |
| uint64_t u; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| |
| r = session_get_idle_hint(s, &t); |
| if (r < 0) |
| return r; |
| |
| u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic; |
| |
| return sd_bus_message_append(reply, "t", u); |
| } |
| |
| static int property_get_locked_hint( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| Session *s = ASSERT_PTR(userdata); |
| |
| assert(bus); |
| assert(reply); |
| |
| return sd_bus_message_append(reply, "b", session_get_locked_hint(s) > 0); |
| } |
| |
| int bus_session_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Session *s = ASSERT_PTR(userdata); |
| int r; |
| |
| assert(message); |
| |
| r = bus_verify_polkit_async( |
| message, |
| CAP_KILL, |
| "org.freedesktop.login1.manage", |
| NULL, |
| false, |
| s->user->user_record->uid, |
| &s->manager->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* Will call us back */ |
| |
| r = session_stop(s, /* force = */ true); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| int bus_session_method_activate(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Session *s = ASSERT_PTR(userdata); |
| int r; |
| |
| assert(message); |
| |
| r = check_polkit_chvt(message, s->manager, error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* Will call us back */ |
| |
| r = session_activate(s); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| int bus_session_method_lock(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Session *s = ASSERT_PTR(userdata); |
| int r; |
| |
| assert(message); |
| |
| r = bus_verify_polkit_async( |
| message, |
| CAP_SYS_ADMIN, |
| "org.freedesktop.login1.lock-sessions", |
| NULL, |
| false, |
| s->user->user_record->uid, |
| &s->manager->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* Will call us back */ |
| |
| r = session_send_lock(s, strstr(sd_bus_message_get_member(message), "Lock")); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_set_idle_hint(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
| Session *s = ASSERT_PTR(userdata); |
| uid_t uid; |
| int r, b; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "b", &b); |
| 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; |
| |
| if (uid != 0 && uid != s->user->user_record->uid) |
| return sd_bus_error_set(error, SD_BUS_ERROR_ACCESS_DENIED, "Only owner of session may set idle hint"); |
| |
| r = session_set_idle_hint(s, b); |
| if (r == -ENOTTY) |
| return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Idle hint control is not supported on non-graphical sessions."); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_set_locked_hint(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
| Session *s = ASSERT_PTR(userdata); |
| uid_t uid; |
| int r, b; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "b", &b); |
| 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; |
| |
| if (uid != 0 && uid != s->user->user_record->uid) |
| return sd_bus_error_set(error, SD_BUS_ERROR_ACCESS_DENIED, "Only owner of session may set locked hint"); |
| |
| session_set_locked_hint(s, b); |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| int bus_session_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Session *s = ASSERT_PTR(userdata); |
| const char *swho; |
| int32_t signo; |
| KillWho who; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "si", &swho, &signo); |
| if (r < 0) |
| return r; |
| |
| if (isempty(swho)) |
| who = KILL_ALL; |
| else { |
| who = kill_who_from_string(swho); |
| if (who < 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid kill parameter '%s'", swho); |
| } |
| |
| if (!SIGNAL_VALID(signo)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo); |
| |
| r = bus_verify_polkit_async( |
| message, |
| CAP_KILL, |
| "org.freedesktop.login1.manage", |
| NULL, |
| false, |
| s->user->user_record->uid, |
| &s->manager->polkit_registry, |
| error); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| return 1; /* Will call us back */ |
| |
| r = session_kill(s, who, signo); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_take_control(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
| Session *s = ASSERT_PTR(userdata); |
| int r, force; |
| uid_t uid; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "b", &force); |
| 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; |
| |
| if (uid != 0 && (force || uid != s->user->user_record->uid)) |
| return sd_bus_error_set(error, SD_BUS_ERROR_ACCESS_DENIED, "Only owner of session may take control"); |
| |
| r = session_set_controller(s, sd_bus_message_get_sender(message), force, true); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_release_control(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Session *s = ASSERT_PTR(userdata); |
| |
| assert(message); |
| |
| if (!session_is_controller(s, sd_bus_message_get_sender(message))) |
| return sd_bus_error_set(error, BUS_ERROR_NOT_IN_CONTROL, "You are not in control of this session"); |
| |
| session_drop_controller(s); |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_set_type(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Session *s = ASSERT_PTR(userdata); |
| const char *t; |
| SessionType type; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "s", &t); |
| if (r < 0) |
| return r; |
| |
| type = session_type_from_string(t); |
| if (type < 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, |
| "Invalid session type '%s'", t); |
| |
| if (!session_is_controller(s, sd_bus_message_get_sender(message))) |
| return sd_bus_error_set(error, BUS_ERROR_NOT_IN_CONTROL, "You must be in control of this session to set type"); |
| |
| session_set_type(s, type); |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_set_display(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Session *s = ASSERT_PTR(userdata); |
| const char *display; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "s", &display); |
| if (r < 0) |
| return r; |
| |
| if (!session_is_controller(s, sd_bus_message_get_sender(message))) |
| return sd_bus_error_set(error, BUS_ERROR_NOT_IN_CONTROL, "You must be in control of this session to set display"); |
| |
| if (!SESSION_TYPE_IS_GRAPHICAL(s->type)) |
| return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Setting display is only supported for graphical sessions"); |
| |
| r = session_set_display(s, display); |
| if (r < 0) |
| return r; |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_take_device(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Session *s = ASSERT_PTR(userdata); |
| uint32_t major, minor; |
| SessionDevice *sd; |
| dev_t dev; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "uu", &major, &minor); |
| if (r < 0) |
| return r; |
| |
| if (!DEVICE_MAJOR_VALID(major) || !DEVICE_MINOR_VALID(minor)) |
| return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Device major/minor is not valid."); |
| |
| if (!session_is_controller(s, sd_bus_message_get_sender(message))) |
| return sd_bus_error_set(error, BUS_ERROR_NOT_IN_CONTROL, "You are not in control of this session"); |
| |
| dev = makedev(major, minor); |
| sd = hashmap_get(s->devices, &dev); |
| if (sd) |
| /* We don't allow retrieving a device multiple times. |
| * The related ReleaseDevice call is not ref-counted. |
| * The caller should use dup() if it requires more |
| * than one fd (it would be functionally |
| * equivalent). */ |
| return sd_bus_error_set(error, BUS_ERROR_DEVICE_IS_TAKEN, "Device already taken"); |
| |
| r = session_device_new(s, dev, true, &sd); |
| if (r < 0) |
| return r; |
| |
| r = session_device_save(sd); |
| if (r < 0) |
| goto error; |
| |
| r = sd_bus_reply_method_return(message, "hb", sd->fd, !sd->active); |
| if (r < 0) |
| goto error; |
| |
| session_save(s); |
| return 1; |
| |
| error: |
| session_device_free(sd); |
| return r; |
| } |
| |
| static int method_release_device(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Session *s = ASSERT_PTR(userdata); |
| uint32_t major, minor; |
| SessionDevice *sd; |
| dev_t dev; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "uu", &major, &minor); |
| if (r < 0) |
| return r; |
| |
| if (!DEVICE_MAJOR_VALID(major) || !DEVICE_MINOR_VALID(minor)) |
| return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Device major/minor is not valid."); |
| |
| if (!session_is_controller(s, sd_bus_message_get_sender(message))) |
| return sd_bus_error_set(error, BUS_ERROR_NOT_IN_CONTROL, "You are not in control of this session"); |
| |
| dev = makedev(major, minor); |
| sd = hashmap_get(s->devices, &dev); |
| if (!sd) |
| return sd_bus_error_set(error, BUS_ERROR_DEVICE_NOT_TAKEN, "Device not taken"); |
| |
| session_device_free(sd); |
| session_save(s); |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_pause_device_complete(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| Session *s = ASSERT_PTR(userdata); |
| uint32_t major, minor; |
| SessionDevice *sd; |
| dev_t dev; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "uu", &major, &minor); |
| if (r < 0) |
| return r; |
| |
| if (!DEVICE_MAJOR_VALID(major) || !DEVICE_MINOR_VALID(minor)) |
| return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Device major/minor is not valid."); |
| |
| if (!session_is_controller(s, sd_bus_message_get_sender(message))) |
| return sd_bus_error_set(error, BUS_ERROR_NOT_IN_CONTROL, "You are not in control of this session"); |
| |
| dev = makedev(major, minor); |
| sd = hashmap_get(s->devices, &dev); |
| if (!sd) |
| return sd_bus_error_set(error, BUS_ERROR_DEVICE_NOT_TAKEN, "Device not taken"); |
| |
| session_device_complete_pause(sd); |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int method_set_brightness(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
| _cleanup_(sd_device_unrefp) sd_device *d = NULL; |
| const char *subsystem, *name, *seat; |
| Session *s = ASSERT_PTR(userdata); |
| uint32_t brightness; |
| uid_t uid; |
| int r; |
| |
| assert(message); |
| |
| r = sd_bus_message_read(message, "ssu", &subsystem, &name, &brightness); |
| if (r < 0) |
| return r; |
| |
| if (!STR_IN_SET(subsystem, "backlight", "leds")) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Subsystem type %s not supported, must be one of 'backlight' or 'leds'.", subsystem); |
| if (!filename_is_valid(name)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Not a valid device name %s, refusing.", name); |
| |
| if (!s->seat) |
| return sd_bus_error_set(error, BUS_ERROR_NOT_YOUR_DEVICE, "Your session has no seat, refusing."); |
| if (s->seat->active != s) |
| return sd_bus_error_set(error, BUS_ERROR_NOT_YOUR_DEVICE, "Session is not in foreground, refusing."); |
| |
| 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; |
| |
| if (uid != 0 && uid != s->user->user_record->uid) |
| return sd_bus_error_set(error, SD_BUS_ERROR_ACCESS_DENIED, "Only owner of session may change brightness."); |
| |
| r = sd_device_new_from_subsystem_sysname(&d, subsystem, name); |
| if (r < 0) |
| return sd_bus_error_set_errnof(error, r, "Failed to open device %s:%s: %m", subsystem, name); |
| |
| if (sd_device_get_property_value(d, "ID_SEAT", &seat) >= 0 && !streq_ptr(seat, s->seat->id)) |
| return sd_bus_error_setf(error, BUS_ERROR_NOT_YOUR_DEVICE, "Device %s:%s does not belong to your seat %s, refusing.", subsystem, name, s->seat->id); |
| |
| r = manager_write_brightness(s->manager, d, brightness, message); |
| if (r < 0) |
| return r; |
| |
| return 1; |
| } |
| |
| static int session_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { |
| _cleanup_free_ char *e = NULL; |
| sd_bus_message *message; |
| Manager *m = ASSERT_PTR(userdata); |
| Session *session; |
| const char *p; |
| int r; |
| |
| assert(bus); |
| assert(path); |
| assert(interface); |
| assert(found); |
| |
| p = startswith(path, "/org/freedesktop/login1/session/"); |
| if (!p) |
| return 0; |
| |
| e = bus_label_unescape(p); |
| if (!e) |
| return -ENOMEM; |
| |
| message = sd_bus_get_current_message(bus); |
| |
| r = manager_get_session_from_creds(m, message, e, error, &session); |
| if (r == -ENXIO) { |
| sd_bus_error_free(error); |
| return 0; |
| } |
| if (r < 0) |
| return r; |
| |
| *found = session; |
| return 1; |
| } |
| |
| char *session_bus_path(Session *s) { |
| _cleanup_free_ char *t = NULL; |
| |
| assert(s); |
| |
| t = bus_label_escape(s->id); |
| if (!t) |
| return NULL; |
| |
| return strjoin("/org/freedesktop/login1/session/", t); |
| } |
| |
| static int session_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { |
| _cleanup_strv_free_ char **l = NULL; |
| sd_bus_message *message; |
| Manager *m = userdata; |
| Session *session; |
| int r; |
| |
| assert(bus); |
| assert(path); |
| assert(nodes); |
| |
| HASHMAP_FOREACH(session, m->sessions) { |
| char *p; |
| |
| p = session_bus_path(session); |
| if (!p) |
| return -ENOMEM; |
| |
| r = strv_consume(&l, p); |
| if (r < 0) |
| return r; |
| } |
| |
| message = sd_bus_get_current_message(bus); |
| if (message) { |
| _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; |
| |
| r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds); |
| if (r >= 0) { |
| bool may_auto = false; |
| const char *name; |
| |
| r = sd_bus_creds_get_session(creds, &name); |
| if (r >= 0) { |
| session = hashmap_get(m->sessions, name); |
| if (session) { |
| r = strv_extend(&l, "/org/freedesktop/login1/session/self"); |
| if (r < 0) |
| return r; |
| |
| may_auto = true; |
| } |
| } |
| |
| if (!may_auto) { |
| uid_t uid; |
| |
| r = sd_bus_creds_get_owner_uid(creds, &uid); |
| if (r >= 0) { |
| User *user; |
| |
| user = hashmap_get(m->users, UID_TO_PTR(uid)); |
| may_auto = user && user->display; |
| } |
| } |
| |
| if (may_auto) { |
| r = strv_extend(&l, "/org/freedesktop/login1/session/auto"); |
| if (r < 0) |
| return r; |
| } |
| } |
| } |
| |
| *nodes = TAKE_PTR(l); |
| return 1; |
| } |
| |
| int session_send_signal(Session *s, bool new_session) { |
| _cleanup_free_ char *p = NULL; |
| |
| assert(s); |
| |
| p = session_bus_path(s); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_emit_signal( |
| s->manager->bus, |
| "/org/freedesktop/login1", |
| "org.freedesktop.login1.Manager", |
| new_session ? "SessionNew" : "SessionRemoved", |
| "so", s->id, p); |
| } |
| |
| int session_send_changed(Session *s, const char *properties, ...) { |
| _cleanup_free_ char *p = NULL; |
| char **l; |
| |
| assert(s); |
| |
| if (!s->started) |
| return 0; |
| |
| p = session_bus_path(s); |
| if (!p) |
| return -ENOMEM; |
| |
| l = strv_from_stdarg_alloca(properties); |
| |
| return sd_bus_emit_properties_changed_strv(s->manager->bus, p, "org.freedesktop.login1.Session", l); |
| } |
| |
| int session_send_lock(Session *s, bool lock) { |
| _cleanup_free_ char *p = NULL; |
| |
| assert(s); |
| |
| p = session_bus_path(s); |
| if (!p) |
| return -ENOMEM; |
| |
| return sd_bus_emit_signal( |
| s->manager->bus, |
| p, |
| "org.freedesktop.login1.Session", |
| lock ? "Lock" : "Unlock", |
| NULL); |
| } |
| |
| int session_send_lock_all(Manager *m, bool lock) { |
| Session *session; |
| int r = 0; |
| |
| assert(m); |
| |
| HASHMAP_FOREACH(session, m->sessions) { |
| int k; |
| |
| k = session_send_lock(session, lock); |
| if (k < 0) |
| r = k; |
| } |
| |
| return r; |
| } |
| |
| static bool session_ready(Session *s) { |
| assert(s); |
| |
| /* Returns true when the session is ready, i.e. all jobs we enqueued for it are done (regardless if successful or not) */ |
| |
| return !s->scope_job && |
| !s->user->service_job; |
| } |
| |
| int session_send_create_reply(Session *s, sd_bus_error *error) { |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *c = NULL; |
| _cleanup_close_ int fifo_fd = -EBADF; |
| _cleanup_free_ char *p = NULL; |
| |
| assert(s); |
| |
| /* This is called after the session scope and the user service were successfully created, and finishes where |
| * bus_manager_create_session() left off. */ |
| |
| if (!s->create_message) |
| return 0; |
| |
| if (!sd_bus_error_is_set(error) && !session_ready(s)) |
| return 0; |
| |
| c = TAKE_PTR(s->create_message); |
| if (error) |
| return sd_bus_reply_method_error(c, error); |
| |
| fifo_fd = session_create_fifo(s); |
| if (fifo_fd < 0) |
| return fifo_fd; |
| |
| /* Update the session state file before we notify the client about the result. */ |
| session_save(s); |
| |
| p = session_bus_path(s); |
| if (!p) |
| return -ENOMEM; |
| |
| log_debug("Sending reply about created session: " |
| "id=%s object_path=%s uid=%u runtime_path=%s " |
| "session_fd=%d seat=%s vtnr=%u", |
| s->id, |
| p, |
| (uint32_t) s->user->user_record->uid, |
| s->user->runtime_path, |
| fifo_fd, |
| s->seat ? s->seat->id : "", |
| (uint32_t) s->vtnr); |
| |
| return sd_bus_reply_method_return( |
| c, "soshusub", |
| s->id, |
| p, |
| s->user->runtime_path, |
| fifo_fd, |
| (uint32_t) s->user->user_record->uid, |
| s->seat ? s->seat->id : "", |
| (uint32_t) s->vtnr, |
| false); |
| } |
| |
| static const sd_bus_vtable session_vtable[] = { |
| SD_BUS_VTABLE_START(0), |
| |
| SD_BUS_PROPERTY("Id", "s", NULL, offsetof(Session, id), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("User", "(uo)", property_get_user, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Name", "s", property_get_name, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| BUS_PROPERTY_DUAL_TIMESTAMP("Timestamp", offsetof(Session, timestamp), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("VTNr", "u", NULL, offsetof(Session, vtnr), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Seat", "(so)", property_get_seat, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("TTY", "s", NULL, offsetof(Session, tty), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Display", "s", NULL, offsetof(Session, display), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Remote", "b", bus_property_get_bool, offsetof(Session, remote), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("RemoteHost", "s", NULL, offsetof(Session, remote_host), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("RemoteUser", "s", NULL, offsetof(Session, remote_user), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Service", "s", NULL, offsetof(Session, service), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Desktop", "s", NULL, offsetof(Session, desktop), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Scope", "s", NULL, offsetof(Session, scope), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Leader", "u", bus_property_get_pid, offsetof(Session, leader), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Audit", "u", NULL, offsetof(Session, audit_id), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Session, type), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("Class", "s", property_get_class, offsetof(Session, class), SD_BUS_VTABLE_PROPERTY_CONST), |
| SD_BUS_PROPERTY("Active", "b", property_get_active, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("State", "s", property_get_state, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| 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("LockedHint", "b", property_get_locked_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| |
| SD_BUS_METHOD("Terminate", |
| NULL, |
| NULL, |
| bus_session_method_terminate, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("Activate", |
| NULL, |
| NULL, |
| bus_session_method_activate, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("Lock", |
| NULL, |
| NULL, |
| bus_session_method_lock, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("Unlock", |
| NULL, |
| NULL, |
| bus_session_method_lock, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetIdleHint", |
| SD_BUS_ARGS("b", idle), |
| SD_BUS_NO_RESULT, |
| method_set_idle_hint, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetLockedHint", |
| SD_BUS_ARGS("b", locked), |
| SD_BUS_NO_RESULT, |
| method_set_locked_hint, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("Kill", |
| SD_BUS_ARGS("s", who, "i", signal_number), |
| SD_BUS_NO_RESULT, |
| bus_session_method_kill, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("TakeControl", |
| SD_BUS_ARGS("b", force), |
| SD_BUS_NO_RESULT, |
| method_take_control, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD("ReleaseControl", |
| NULL, |
| NULL, |
| method_release_control, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetType", |
| SD_BUS_ARGS("s", type), |
| SD_BUS_NO_RESULT, |
| method_set_type, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetDisplay", |
| SD_BUS_ARGS("s", display), |
| SD_BUS_NO_RESULT, |
| method_set_display, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("TakeDevice", |
| SD_BUS_ARGS("u", major, "u", minor), |
| SD_BUS_RESULT("h", fd, "b", inactive), |
| method_take_device, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("ReleaseDevice", |
| SD_BUS_ARGS("u", major, "u", minor), |
| SD_BUS_NO_RESULT, |
| method_release_device, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("PauseDeviceComplete", |
| SD_BUS_ARGS("u", major, "u", minor), |
| SD_BUS_NO_RESULT, |
| method_pause_device_complete, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetBrightness", |
| SD_BUS_ARGS("s", subsystem, "s", name, "u", brightness), |
| SD_BUS_NO_RESULT, |
| method_set_brightness, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| |
| SD_BUS_SIGNAL_WITH_ARGS("PauseDevice", |
| SD_BUS_ARGS("u", major, "u", minor, "s", type), |
| 0), |
| SD_BUS_SIGNAL_WITH_ARGS("ResumeDevice", |
| SD_BUS_ARGS("u", major, "u", minor, "h", fd), |
| 0), |
| SD_BUS_SIGNAL("Lock", NULL, 0), |
| SD_BUS_SIGNAL("Unlock", NULL, 0), |
| |
| SD_BUS_VTABLE_END |
| }; |
| |
| const BusObjectImplementation session_object = { |
| "/org/freedesktop/login1/session", |
| "org.freedesktop.login1.Session", |
| .fallback_vtables = BUS_FALLBACK_VTABLES({session_vtable, session_object_find}), |
| .node_enumerator = session_node_enumerator, |
| }; |
