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From 75131b469fa9e1e2e3cb623fa1f3d36cba36af78 Mon Sep 17 00:00:00 2001
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From: Victor Toso <me@victortoso.com>
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803fb7 |
Date: Wed, 11 May 2016 19:34:13 +0200
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803fb7 |
Subject: [PATCH] logind: introduce LockedHint and SetLockedHint (#3238)
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803fb7 |
Desktop environments can keep this property up to date to allow
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applications to easily track session's Lock status.
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Cherry-picked from: 42d35e1301928d08dd32ec51f0205252ae658ba5
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803fb7 |
Resolves: #1335499
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---
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src/login/logind-session-dbus.c | 50 +++++++++++++++++++++++++++
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de8967 |
src/login/logind-session.c | 17 +++++++++
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src/login/logind-session.h | 4 +++
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src/login/org.freedesktop.login1.conf | 4 +++
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803fb7 |
4 files changed, 75 insertions(+)
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diff --git a/src/login/logind-session-dbus.c b/src/login/logind-session-dbus.c
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index 4e7edef52..75b7186e8 100644
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803fb7 |
--- a/src/login/logind-session-dbus.c
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803fb7 |
+++ b/src/login/logind-session-dbus.c
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@@ -180,6 +180,24 @@ static int property_get_idle_since_hint(
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return sd_bus_message_append(reply, "t", u);
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}
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803fb7 |
+static int property_get_locked_hint(
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+ sd_bus *bus,
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+ const char *path,
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+ const char *interface,
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+ const char *property,
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+ sd_bus_message *reply,
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+ void *userdata,
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+ sd_bus_error *error) {
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+
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+ Session *s = userdata;
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+
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+ assert(bus);
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+ assert(reply);
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+ assert(s);
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+
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+ return sd_bus_message_append(reply, "b", session_get_locked_hint(s) > 0);
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+}
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+
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static int method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
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Session *s = userdata;
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int r;
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@@ -255,6 +273,36 @@ static int method_set_idle_hint(sd_bus *bus, sd_bus_message *message, void *user
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return sd_bus_reply_method_return(message, NULL);
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}
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+static int method_set_locked_hint(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
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+ _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
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+ Session *s = userdata;
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+ uid_t uid;
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+ int r, b;
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+
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+ assert(bus);
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+ assert(message);
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+ assert(s);
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+
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+ r = sd_bus_message_read(message, "b", &b);
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+ if (r < 0)
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+ return r;
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+
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+ r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds);
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+ if (r < 0)
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+ return r;
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+
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+ r = sd_bus_creds_get_euid(creds, &uid);
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+ if (r < 0)
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+ return r;
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+
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+ if (uid != 0 && uid != s->user->uid)
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+ return sd_bus_error_setf(error, SD_BUS_ERROR_ACCESS_DENIED, "Only owner of session may set locked hint");
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+
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+ session_set_locked_hint(s, b);
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+
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+ return sd_bus_reply_method_return(message, NULL);
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+}
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+
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static int method_kill(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
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Session *s = userdata;
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const char *swho;
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@@ -455,6 +503,7 @@ const sd_bus_vtable session_vtable[] = {
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SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
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SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
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SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
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+ SD_BUS_PROPERTY("LockedHint", "b", property_get_locked_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
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SD_BUS_METHOD("Terminate", NULL, NULL, method_terminate, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
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SD_BUS_METHOD("Activate", NULL, NULL, method_activate, SD_BUS_VTABLE_UNPRIVILEGED),
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803fb7 |
@@ -462,6 +511,7 @@ const sd_bus_vtable session_vtable[] = {
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
SD_BUS_METHOD("Unlock", NULL, NULL, method_lock, 0),
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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SD_BUS_METHOD("SetIdleHint", "b", NULL, method_set_idle_hint, SD_BUS_VTABLE_UNPRIVILEGED),
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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SD_BUS_METHOD("Kill", "si", NULL, method_kill, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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+ SD_BUS_METHOD("SetLockedHint", "b", NULL, method_set_locked_hint, SD_BUS_VTABLE_UNPRIVILEGED),
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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SD_BUS_METHOD("TakeControl", "b", NULL, method_take_control, SD_BUS_VTABLE_UNPRIVILEGED),
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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SD_BUS_METHOD("ReleaseControl", NULL, NULL, method_release_control, SD_BUS_VTABLE_UNPRIVILEGED),
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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SD_BUS_METHOD("TakeDevice", "uu", "hb", method_take_device, SD_BUS_VTABLE_UNPRIVILEGED),
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
diff --git a/src/login/logind-session.c b/src/login/logind-session.c
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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index d2e7b4012..dc24539f1 100644
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
--- a/src/login/logind-session.c
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
+++ b/src/login/logind-session.c
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
@@ -843,6 +843,23 @@ void session_set_idle_hint(Session *s, bool b) {
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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manager_send_changed(s->manager, "IdleHint", "IdleSinceHint", "IdleSinceHintMonotonic", NULL);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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}
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803fb7 |
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803fb7 |
+int session_get_locked_hint(Session *s) {
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
+ assert(s);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
+
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
+ return s->locked_hint;
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+}
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803fb7 |
+
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803fb7 |
+void session_set_locked_hint(Session *s, bool b) {
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
+ assert(s);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
+
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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+ if (s->locked_hint == b)
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
+ return;
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+
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+ s->locked_hint = b;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
+
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
+ session_send_changed(s, "LockedHint", NULL);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
+}
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+
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static int session_dispatch_fifo(sd_event_source *es, int fd, uint32_t revents, void *userdata) {
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Session *s = userdata;
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803fb7 |
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803fb7 |
diff --git a/src/login/logind-session.h b/src/login/logind-session.h
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
index a007fb5e8..5002b6868 100644
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
--- a/src/login/logind-session.h
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803fb7 |
+++ b/src/login/logind-session.h
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803fb7 |
@@ -111,6 +111,8 @@ struct Session {
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bool idle_hint;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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dual_timestamp idle_hint_timestamp;
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803fb7 |
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803fb7 |
+ bool locked_hint;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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+
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bool in_gc_queue:1;
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bool started:1;
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bool stopping:1;
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@@ -137,6 +139,8 @@ int session_activate(Session *s);
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bool session_is_active(Session *s);
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int session_get_idle_hint(Session *s, dual_timestamp *t);
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void session_set_idle_hint(Session *s, bool b);
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+int session_get_locked_hint(Session *s);
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+void session_set_locked_hint(Session *s, bool b);
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int session_create_fifo(Session *s);
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int session_start(Session *s);
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int session_stop(Session *s, bool force);
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diff --git a/src/login/org.freedesktop.login1.conf b/src/login/org.freedesktop.login1.conf
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index 1318328aa..dc7e0bec2 100644
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--- a/src/login/org.freedesktop.login1.conf
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803fb7 |
+++ b/src/login/org.freedesktop.login1.conf
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@@ -160,6 +160,10 @@
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803fb7 |
send_interface="org.freedesktop.login1.Session"
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send_member="SetIdleHint"/>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
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+
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+ send_interface="org.freedesktop.login1.Session"
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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+ send_member="SetLockedHint"/>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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+
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803fb7 |
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send_interface="org.freedesktop.login1.Session"
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
803fb7 |
send_member="TakeControl"/>
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