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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
commitb750101eb236130cf056c675997decbac904cc49 (patch)
treea5df1a06754bdd014cb975c051c83b01c9a97532 /src/login/logind-session-dbus.c
parentInitial commit. (diff)
downloadsystemd-b750101eb236130cf056c675997decbac904cc49.tar.xz
systemd-b750101eb236130cf056c675997decbac904cc49.zip
Adding upstream version 252.22.upstream/252.22
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/login/logind-session-dbus.c')
-rw-r--r--src/login/logind-session-dbus.c951
1 files changed, 951 insertions, 0 deletions
diff --git a/src/login/logind-session-dbus.c b/src/login/logind-session-dbus.c
new file mode 100644
index 0000000..b45eb22
--- /dev/null
+++ b/src/login/logind-session-dbus.c
@@ -0,0 +1,951 @@
+/* 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"
+#include "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 = -1;
+ _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_EMITS_CHANGE),
+ 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,
+};