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Update to 42.1.1 (#2061546)

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This commit is contained in:
David King 2022-05-11 11:26:25 +01:00
parent 686710ebe0
commit d1e6ebec7f
6 changed files with 238 additions and 459 deletions
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71
0001-vnc-Copy-pixels-using-the-right-destination-stride.patch
View File

@ -1,71 +0,0 @@
From 81172effba7c70d3b2932c67be79a2924eae9d73 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Mon, 12 Oct 2020 17:34:30 +0200
Subject: [PATCH] vnc: Copy pixels using the right destination stride
We're copying the pixels in a separate thread managed by PipeWire, and
in this thread, accessing the VNC framebuffer dimension and stride is
racy. Instead of fetching the dimension directly, pass the expected
width and get the stride it will eventually have.
Already before this patch, when the copied pixel end up on the main
thread and the dimension still doesn't match up, the frame will be
dropped.
---
src/grd-session-vnc.c | 5 +++--
src/grd-session-vnc.h | 3 ++-
src/grd-vnc-pipewire-stream.c | 5 +++--
3 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/src/grd-session-vnc.c b/src/grd-session-vnc.c
index 69fb33d..f4835aa 100644
--- a/src/grd-session-vnc.c
+++ b/src/grd-session-vnc.c
@@ -535,9 +535,10 @@ grd_session_vnc_get_fd (GrdSessionVnc *session_vnc)
}
int
-grd_session_vnc_get_framebuffer_stride (GrdSessionVnc *session_vnc)
+grd_session_vnc_get_stride_for_width (GrdSessionVnc *session_vnc,
+ int width)
{
- return session_vnc->rfb_screen->paddedWidthInBytes;
+ return width * BGRX_BYTES_PER_PIXEL;
}
rfbClientPtr
diff --git a/src/grd-session-vnc.h b/src/grd-session-vnc.h
index 0d01ad3..ccd046c 100644
--- a/src/grd-session-vnc.h
+++ b/src/grd-session-vnc.h
@@ -60,7 +60,8 @@ void grd_session_vnc_move_cursor (GrdSessionVnc *session_vnc,
int grd_session_vnc_get_fd (GrdSessionVnc *session_vnc);
-int grd_session_vnc_get_framebuffer_stride (GrdSessionVnc *session_vnc);
+int grd_session_vnc_get_stride_for_width (GrdSessionVnc *session_vnc,
+ int width);
gboolean grd_session_vnc_is_client_gone (GrdSessionVnc *session_vnc);
diff --git a/src/grd-vnc-pipewire-stream.c b/src/grd-vnc-pipewire-stream.c
index 96dd7c9..82ceb9b 100644
--- a/src/grd-vnc-pipewire-stream.c
+++ b/src/grd-vnc-pipewire-stream.c
@@ -326,10 +326,11 @@ process_buffer (GrdVncPipeWireStream *stream,
int height;
int y;
- src_stride = buffer->datas[0].chunk->stride;
- dst_stride = grd_session_vnc_get_framebuffer_stride (stream->session);
height = stream->spa_format.size.height;
width = stream->spa_format.size.width;
+ src_stride = buffer->datas[0].chunk->stride;
+ dst_stride = grd_session_vnc_get_stride_for_width (stream->session,
+ width);
frame->data = g_malloc (height * dst_stride);
for (y = 0; y < height; y++)
--
2.28.0

80
0001-vnc-Drop-frames-if-client-is-gone.patch
View File

@ -1,80 +0,0 @@
From ab97841629f5f3f4fab9993b6255b6ae04828b9c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Wed, 9 Sep 2020 10:14:20 +0200
Subject: [PATCH] vnc: Drop frames if client is gone
Frames from PipeWire are posted asynchronously from a I/O thread to the
main thread where they are turned into VNC frame updates and cursor
movements. On the other hand, sessions are closed asynchronously when
the VNC client disappears. If a frame ended up on the main thread after
a client disappeared but before the session and stream was closed, we'd
try to turn the new frames into VNC updates without a client being
available, causing use after free.
Fix this by dropping frames that happens during this time frame.
Closes: https://gitlab.gnome.org/GNOME/gnome-remote-desktop/-/issues/43
---
src/grd-session-vnc.c | 7 +++++++
src/grd-session-vnc.h | 2 ++
src/grd-vnc-pipewire-stream.c | 8 ++++++++
3 files changed, 17 insertions(+)
diff --git a/src/grd-session-vnc.c b/src/grd-session-vnc.c
index 813838a..a06d34d 100644
--- a/src/grd-session-vnc.c
+++ b/src/grd-session-vnc.c
@@ -209,6 +209,12 @@ maybe_queue_close_session_idle (GrdSessionVnc *session_vnc)
g_idle_add (close_session_idle, session_vnc);
}
+gboolean
+grd_session_vnc_is_client_gone (GrdSessionVnc *session_vnc)
+{
+ return !session_vnc->rfb_client;
+}
+
static void
handle_client_gone (rfbClientPtr rfb_client)
{
@@ -218,6 +224,7 @@ handle_client_gone (rfbClientPtr rfb_client)
grd_session_vnc_detach_source (session_vnc);
maybe_queue_close_session_idle (session_vnc);
+ session_vnc->rfb_client = NULL;
}
static void
diff --git a/src/grd-session-vnc.h b/src/grd-session-vnc.h
index 579a12a..07678c8 100644
--- a/src/grd-session-vnc.h
+++ b/src/grd-session-vnc.h
@@ -57,4 +57,6 @@ void grd_session_vnc_move_cursor (GrdSessionVnc *session_vnc,
int grd_session_vnc_get_framebuffer_stride (GrdSessionVnc *session_vnc);
+gboolean grd_session_vnc_is_client_gone (GrdSessionVnc *session_vnc);
+
#endif /* GRD_SESSION_VNC_H */
diff --git a/src/grd-vnc-pipewire-stream.c b/src/grd-vnc-pipewire-stream.c
index 78793c4..96dd7c9 100644
--- a/src/grd-vnc-pipewire-stream.c
+++ b/src/grd-vnc-pipewire-stream.c
@@ -234,6 +234,14 @@ do_render (struct spa_loop *loop,
if (!frame)
return 0;
+ if (grd_session_vnc_is_client_gone (stream->session))
+ {
+ g_free (frame->data);
+ g_clear_pointer (&frame->rfb_cursor, rfbFreeCursor);
+ g_free (frame);
+ return 0;
+ }
+
if (frame->rfb_cursor)
grd_session_vnc_set_cursor (stream->session, frame->rfb_cursor);
--
2.26.2

73
0001-vnc-pipewire-stream-Handle-stride-mismatch.patch
View File

@ -1,73 +0,0 @@
From 78c5bcb181fe2b0b9fc17eea696feac8b504df54 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Thu, 7 May 2020 15:48:22 +0200
Subject: [PATCH] vnc/pipewire-stream: Handle stride mismatch
The VNC server framebuffer assumes a particular stride; but there is no
guarantee that we'll get the same from PipeWire. Handle this gracefully
by coping row by row instead of the whole buffer.
---
src/grd-vnc-pipewire-stream.c | 23 +++++++++++++++--------
1 file changed, 15 insertions(+), 8 deletions(-)
diff --git a/src/grd-vnc-pipewire-stream.c b/src/grd-vnc-pipewire-stream.c
index 88c07be..261292a 100644
--- a/src/grd-vnc-pipewire-stream.c
+++ b/src/grd-vnc-pipewire-stream.c
@@ -187,8 +187,6 @@ on_stream_param_changed (void *user_data,
struct spa_pod_builder pod_builder;
int width;
int height;
- int stride;
- int size;
const struct spa_pod *params[3];
if (!format || id != SPA_PARAM_Format)
@@ -203,14 +201,9 @@ on_stream_param_changed (void *user_data,
grd_session_vnc_queue_resize_framebuffer (stream->session, width, height);
- stride = grd_session_vnc_get_framebuffer_stride (stream->session);
- size = stride * height;
-
params[0] = spa_pod_builder_add_object (
&pod_builder,
SPA_TYPE_OBJECT_ParamBuffers, SPA_PARAM_Buffers,
- SPA_PARAM_BUFFERS_size, SPA_POD_Int (size),
- SPA_PARAM_BUFFERS_stride, SPA_POD_Int (stride),
SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int (8, 1, 8),
0);
@@ -319,6 +312,10 @@ process_buffer (GrdVncPipeWireStream *stream,
size_t size;
uint8_t *map;
void *src_data;
+ int src_stride;
+ int dst_stride;
+ int height;
+ int y;
struct spa_meta_cursor *spa_meta_cursor;
g_autofree GrdVncFrame *frame = NULL;
@@ -359,7 +356,17 @@ process_buffer (GrdVncPipeWireStream *stream,
return NULL;
}
- frame->data = g_memdup (src_data, buffer->datas[0].maxsize);
+ src_stride = buffer->datas[0].chunk->stride;
+ dst_stride = grd_session_vnc_get_framebuffer_stride (stream->session);
+ height = stream->spa_format.size.height;
+
+ frame->data = g_malloc (height * dst_stride);
+ for (y = 0; y < height; y++)
+ {
+ memcpy (((uint8_t *) frame->data) + y * dst_stride,
+ ((uint8_t *) src_data) + y * src_stride,
+ stream->spa_format.size.width * 4);
+ }
if (map)
{
--
2.26.2

7
gnome-remote-desktop.spec
View File

@ -3,8 +3,8 @@
%global tarball_version %%(echo %{version} | tr '~' '.')
Name: gnome-remote-desktop
Version: 42.1
Release: 2%{?dist}
Version: 42.1.1
Release: 1%{?dist}
Summary: GNOME Remote Desktop screen share service
License: GPLv2+
@ -91,6 +91,9 @@ GNOME desktop environment.
%changelog
* Wed May 11 2022 David King <amigadave@amigadave.com> - 42.1.1-1
- Update to 42.1.1 (#2061546)
* Wed Apr 27 2022 David King <amigadave@amigadave.com> - 42.1-2
- Fix isa macro in Requires

464
gnutls-anontls.patch
View File

@ -1,4 +1,4 @@
From 6ca82648e9b6791fbfbbbc9b05f15ec07a992e1a Mon Sep 17 00:00:00 2001
From 63d1c041e3997bfc78803b4d0fe09d96b53c9e50 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Thu, 14 Jun 2018 12:21:37 +0200
Subject: [PATCH 1/7] vnc: Add anonymous TLS encryption support
@ -25,7 +25,7 @@ VNC connection.
create mode 100644 src/grd-vnc-tls.h
diff --git a/meson.build b/meson.build
index 6bd2420..d6c5d9b 100644
index 72d34a4..9a341fa 100644
--- a/meson.build
+++ b/meson.build
@@ -50,6 +50,7 @@ endif
@ -52,7 +52,7 @@ index e3ecc40..fa8dfb7 100644
+
#endif /* GRD_ENUMS_H */
diff --git a/src/grd-session-vnc.c b/src/grd-session-vnc.c
index a4cb958..c2e29b4 100644
index fbc66a4..fa694f0 100644
--- a/src/grd-session-vnc.c
+++ b/src/grd-session-vnc.c
@@ -45,7 +45,9 @@ struct _GrdSessionVnc
@ -220,7 +220,7 @@ index a4cb958..c2e29b4 100644
NULL);
g_source_set_callback (session_vnc->source,
(GSourceFunc) handle_socket_data,
@@ -669,8 +733,10 @@ grd_session_vnc_new (GrdVncServer *vnc_server,
@@ -673,8 +737,10 @@ grd_session_vnc_new (GrdVncServer *vnc_server,
"context", context,
NULL);
@ -231,7 +231,7 @@ index a4cb958..c2e29b4 100644
grd_session_vnc_attach_source (session_vnc);
init_vnc_session (session_vnc);
@@ -685,6 +751,8 @@ grd_session_vnc_dispose (GObject *object)
@@ -689,6 +755,8 @@ grd_session_vnc_dispose (GObject *object)
g_assert (!session_vnc->rfb_screen);
@ -276,7 +276,7 @@ index fcc508d..092d9dc 100644
+
#endif /* GRD_SESSION_VNC_H */
diff --git a/src/grd-settings.c b/src/grd-settings.c
index c8f28fb..502d956 100644
index dad5d57..7753186 100644
--- a/src/grd-settings.c
+++ b/src/grd-settings.c
@@ -69,6 +69,7 @@ struct _GrdSettings
@ -287,7 +287,7 @@ index c8f28fb..502d956 100644
} vnc;
};
@@ -245,6 +246,12 @@ grd_settings_get_vnc_auth_method (GrdSettings *settings)
@@ -259,6 +260,12 @@ grd_settings_get_vnc_auth_method (GrdSettings *settings)
return settings->vnc.auth_method;
}
@ -300,7 +300,7 @@ index c8f28fb..502d956 100644
static void
update_screen_share_mode (GrdSettings *settings)
{
@@ -303,6 +310,13 @@ update_vnc_auth_method (GrdSettings *settings)
@@ -317,6 +324,13 @@ update_vnc_auth_method (GrdSettings *settings)
"auth-method");
}
@ -314,7 +314,7 @@ index c8f28fb..502d956 100644
static void
on_rdp_settings_changed (GSettings *rdp_settings,
const char *key,
@@ -355,6 +369,11 @@ on_vnc_settings_changed (GSettings *vnc_settings,
@@ -369,6 +383,11 @@ on_vnc_settings_changed (GSettings *vnc_settings,
update_vnc_auth_method (settings);
g_signal_emit (settings, signals[VNC_AUTH_METHOD_CHANGED], 0);
}
@ -326,7 +326,7 @@ index c8f28fb..502d956 100644
}
static void
@@ -392,6 +411,8 @@ grd_settings_init (GrdSettings *settings)
@@ -406,6 +425,8 @@ grd_settings_init (GrdSettings *settings)
settings->rdp.port = GRD_RDP_SERVER_PORT;
settings->vnc.port = GRD_VNC_SERVER_PORT;
@ -335,7 +335,7 @@ index c8f28fb..502d956 100644
}
static void
@@ -457,4 +478,11 @@ grd_settings_class_init (GrdSettingsClass *klass)
@@ -471,4 +492,11 @@ grd_settings_class_init (GrdSettingsClass *klass)
0,
NULL, NULL, NULL,
G_TYPE_NONE, 0);
@ -962,181 +962,13 @@ index 939b9a6..e57affb 100644
</schema>
</schemalist>
--
2.34.1
2.36.1
From 212fa98088cb4a754bac8cdb3a69d2a3e6b4dff9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Wed, 27 Nov 2019 11:02:09 +0100
Subject: [PATCH 2/7] session-vnc: Add paused/resumed signals
Paused is when the socket sourec is detached, and resumed when attached.
Meant to be used by the TLS channel security to a attach/detach
out-of-socket source.
---
src/grd-session-vnc.c | 72 ++++++++++++++++++++++++++++++++++++++-----
1 file changed, 65 insertions(+), 7 deletions(-)
diff --git a/src/grd-session-vnc.c b/src/grd-session-vnc.c
index c2e29b4..4be4c49 100644
--- a/src/grd-session-vnc.c
+++ b/src/grd-session-vnc.c
@@ -41,14 +41,27 @@
#define BGRX_SAMPLES_PER_PIXEL 3
#define BGRX_BYTES_PER_PIXEL 4
+enum
+{
+ PAUSED,
+ RESUMED,
+
+ N_SIGNALS
+};
+
+static guint signals[N_SIGNALS];
+
struct _GrdSessionVnc
{
GrdSession parent;
GrdVncServer *vnc_server;
GSocketConnection *connection;
+
GList *socket_grabs;
GSource *source;
+ gboolean is_paused;
+
rfbScreenInfoPtr rfb_screen;
rfbClientPtr rfb_client;
@@ -77,7 +90,7 @@ struct _GrdSessionVnc
G_DEFINE_TYPE (GrdSessionVnc, grd_session_vnc, GRD_TYPE_SESSION)
static void
-grd_session_vnc_detach_source (GrdSessionVnc *session_vnc);
+grd_session_vnc_pause (GrdSessionVnc *session_vnc);
static gboolean
close_session_idle (gpointer user_data);
@@ -236,7 +249,8 @@ handle_client_gone (rfbClientPtr rfb_client)
g_debug ("VNC client gone");
- grd_session_vnc_detach_source (session_vnc);
+ grd_session_vnc_pause (session_vnc);
+
maybe_queue_close_session_idle (session_vnc);
session_vnc->rfb_client = NULL;
}
@@ -305,7 +319,7 @@ handle_new_client (rfbClientPtr rfb_client)
session_vnc->prompt_cancellable,
prompt_response_callback,
session_vnc);
- grd_session_vnc_detach_source (session_vnc);
+ grd_session_vnc_pause (session_vnc);
return RFB_CLIENT_ON_HOLD;
case GRD_VNC_AUTH_METHOD_PASSWORD:
session_vnc->rfb_screen->passwordCheck = check_rfb_password;
@@ -536,7 +550,7 @@ check_rfb_password (rfbClientPtr rfb_client,
if (memcmp (challenge_encrypted, response_encrypted, len) == 0)
{
grd_session_start (GRD_SESSION (session_vnc));
- grd_session_vnc_detach_source (session_vnc);
+ grd_session_vnc_pause (session_vnc);
return TRUE;
}
else
@@ -721,6 +735,36 @@ grd_session_vnc_detach_source (GrdSessionVnc *session_vnc)
g_clear_pointer (&session_vnc->source, g_source_destroy);
}
+gboolean
+grd_session_vnc_is_paused (GrdSessionVnc *session_vnc)
+{
+ return session_vnc->is_paused;
+}
+
+static void
+grd_session_vnc_pause (GrdSessionVnc *session_vnc)
+{
+ if (grd_session_vnc_is_paused (session_vnc))
+ return;
+
+ session_vnc->is_paused = TRUE;
+
+ grd_session_vnc_detach_source (session_vnc);
+ g_signal_emit (session_vnc, signals[PAUSED], 0);
+}
+
+static void
+grd_session_vnc_resume (GrdSessionVnc *session_vnc)
+{
+ if (!grd_session_vnc_is_paused (session_vnc))
+ return;
+
+ session_vnc->is_paused = FALSE;
+
+ grd_session_vnc_attach_source (session_vnc);
+ g_signal_emit (session_vnc, signals[RESUMED], 0);
+}
+
GrdSessionVnc *
grd_session_vnc_new (GrdVncServer *vnc_server,
GSocketConnection *connection)
@@ -738,6 +782,7 @@ grd_session_vnc_new (GrdVncServer *vnc_server,
grd_session_vnc_grab_socket (session_vnc, vnc_socket_grab_func);
grd_session_vnc_attach_source (session_vnc);
+ session_vnc->is_paused = FALSE;
init_vnc_session (session_vnc);
@@ -767,7 +812,7 @@ grd_session_vnc_stop (GrdSession *session)
g_clear_object (&session_vnc->pipewire_stream);
- grd_session_vnc_detach_source (session_vnc);
+ grd_session_vnc_pause (session_vnc);
g_clear_object (&session_vnc->connection);
g_clear_object (&session_vnc->clipboard_vnc);
@@ -827,8 +872,8 @@ grd_session_vnc_stream_ready (GrdSession *session,
G_CALLBACK (on_pipewire_stream_closed),
session_vnc);
- if (!session_vnc->source)
- grd_session_vnc_attach_source (session_vnc);
+ if (grd_session_vnc_is_paused (session_vnc))
+ grd_session_vnc_resume (session_vnc);
}
static void
@@ -849,4 +894,17 @@ grd_session_vnc_class_init (GrdSessionVncClass *klass)
session_class->remote_desktop_session_started =
grd_session_vnc_remote_desktop_session_started;
session_class->stream_ready = grd_session_vnc_stream_ready;
+
+ signals[PAUSED] = g_signal_new ("paused",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ 0,
+ NULL, NULL, NULL,
+ G_TYPE_NONE, 0);
+ signals[RESUMED] = g_signal_new ("resumed",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ 0,
+ NULL, NULL, NULL,
+ G_TYPE_NONE, 0);
}
--
2.34.1
From db1ce3962bbe49491b87cb0a4a90de41614e118b Mon Sep 17 00:00:00 2001
From 38d981d05fa79da2aa15076637253f6c4cc606d9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Wed, 27 Nov 2019 11:03:46 +0100
Subject: [PATCH 3/7] session-vnc: Add grd_session_vnc_dispatch() helper
Subject: [PATCH 2/7] session-vnc: Add grd_session_vnc_dispatch() helper
To be used by the TLS channel security to dispatch when there is data
available that is not visible to the socket source.
@ -1146,10 +978,10 @@ available that is not visible to the socket source.
2 files changed, 18 insertions(+), 10 deletions(-)
diff --git a/src/grd-session-vnc.c b/src/grd-session-vnc.c
index 4be4c49..9708de0 100644
index fa694f0..1edd33a 100644
--- a/src/grd-session-vnc.c
+++ b/src/grd-session-vnc.c
@@ -675,6 +675,21 @@ vnc_socket_grab_func (GrdSessionVnc *session_vnc,
@@ -661,6 +661,21 @@ vnc_socket_grab_func (GrdSessionVnc *session_vnc,
return TRUE;
}
@ -1171,7 +1003,7 @@ index 4be4c49..9708de0 100644
static gboolean
handle_socket_data (GSocket *socket,
GIOCondition condition,
@@ -691,16 +706,7 @@ handle_socket_data (GSocket *socket,
@@ -677,16 +692,7 @@ handle_socket_data (GSocket *socket,
}
else if (condition & G_IO_IN)
{
@ -1203,13 +1035,13 @@ index 092d9dc..e9eced0 100644
#endif /* GRD_SESSION_VNC_H */
--
2.34.1
2.36.1
From d6115fc524886ba716ba22464743c1a72472ff75 Mon Sep 17 00:00:00 2001
From 9aacfa825fcdef0f2eb87b7f48872b1a93ec7923 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Wed, 27 Nov 2019 11:05:13 +0100
Subject: [PATCH 4/7] vnc/tls: Add some logging
Subject: [PATCH 3/7] vnc/tls: Add some logging
Uses the log utility from libvncserver as it is related to the RFB
protocol rather than the session itself.
@ -1280,13 +1112,13 @@ index ec4758e..ac6c35f 100644
{
g_warning ("TLS handshake failed: %s", error->message);
--
2.34.1
2.36.1
From c71c9d295a2921014d55820042fc8bdad02df19c Mon Sep 17 00:00:00 2001
From aeaa81db6cf160a32c8d83a945c860bb7451babf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Wed, 27 Nov 2019 11:07:40 +0100
Subject: [PATCH 5/7] vnc/tls: Dispatch also when data is pending outside of
Subject: [PATCH 4/7] vnc/tls: Dispatch also when data is pending outside of
the socket
gnutls may have data available in its buffers, and we have our own peek
@ -1450,13 +1282,216 @@ index ac6c35f..312b6b9 100644
}
--
2.34.1
2.36.1
From edc2380304d19e1bea58b079b943bad42cac5d69 Mon Sep 17 00:00:00 2001
From be203b966ff119e82ea7ac9894b67a1db2f55f26 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Wed, 27 Nov 2019 16:48:00 +0100
Subject: [PATCH 6/7] session-vnc: Set our own password handling function up
Date: Mon, 12 Oct 2020 17:34:30 +0200
Subject: [PATCH 5/7] vnc: Copy pixels using the right destination stride
We're copying the pixels in a separate thread managed by PipeWire, and
in this thread, accessing the VNC framebuffer dimension and stride is
racy. Instead of fetching the dimension directly, pass the expected
width and get the stride it will eventually have.
Already before this patch, when the copied pixel end up on the main
thread and the dimension still doesn't match up, the frame will be
dropped.
---
src/grd-session-vnc.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/grd-session-vnc.h b/src/grd-session-vnc.h
index 8a916b7..e85f31e 100644
--- a/src/grd-session-vnc.h
+++ b/src/grd-session-vnc.h
@@ -67,7 +67,8 @@ int grd_session_vnc_get_stride_for_width (GrdSessionVnc *session_vnc,
int grd_session_vnc_get_fd (GrdSessionVnc *session_vnc);
-int grd_session_vnc_get_framebuffer_stride (GrdSessionVnc *session_vnc);
+int grd_session_vnc_get_stride_for_width (GrdSessionVnc *session_vnc,
+ int width);
gboolean grd_session_vnc_is_client_gone (GrdSessionVnc *session_vnc);
--
2.36.1
From ffd24b13dfce2e89acf5eb6ccd7bb6b90487e547 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Wed, 11 May 2022 11:17:00 +0100
Subject: [PATCH 6/7] session-vnc: Add paused/resumed signals
Paused is when the socket sourec is detached, and resumed when attached.
Meant to be used by the TLS channel security to a attach/detach
out-of-socket source.
---
src/grd-session-vnc.c | 72 ++++++++++++++++++++++++++++++++++++++-----
1 file changed, 65 insertions(+), 7 deletions(-)
diff --git a/src/grd-session-vnc.c b/src/grd-session-vnc.c
index 1edd33a..39d3ead 100644
--- a/src/grd-session-vnc.c
+++ b/src/grd-session-vnc.c
@@ -41,14 +41,27 @@
#define BGRX_SAMPLES_PER_PIXEL 3
#define BGRX_BYTES_PER_PIXEL 4
+enum
+{
+ PAUSED,
+ RESUMED,
+
+ N_SIGNALS
+};
+
+static guint signals[N_SIGNALS];
+
struct _GrdSessionVnc
{
GrdSession parent;
GrdVncServer *vnc_server;
GSocketConnection *connection;
+
GList *socket_grabs;
GSource *source;
+ gboolean is_paused;
+
rfbScreenInfoPtr rfb_screen;
rfbClientPtr rfb_client;
@@ -77,7 +90,7 @@ struct _GrdSessionVnc
G_DEFINE_TYPE (GrdSessionVnc, grd_session_vnc, GRD_TYPE_SESSION)
static void
-grd_session_vnc_detach_source (GrdSessionVnc *session_vnc);
+grd_session_vnc_pause (GrdSessionVnc *session_vnc);
static gboolean
close_session_idle (gpointer user_data);
@@ -236,7 +249,8 @@ handle_client_gone (rfbClientPtr rfb_client)
g_debug ("VNC client gone");
- grd_session_vnc_detach_source (session_vnc);
+ grd_session_vnc_pause (session_vnc);
+
maybe_queue_close_session_idle (session_vnc);
session_vnc->rfb_client = NULL;
}
@@ -305,7 +319,7 @@ handle_new_client (rfbClientPtr rfb_client)
session_vnc->prompt_cancellable,
prompt_response_callback,
session_vnc);
- grd_session_vnc_detach_source (session_vnc);
+ grd_session_vnc_pause (session_vnc);
return RFB_CLIENT_ON_HOLD;
case GRD_VNC_AUTH_METHOD_PASSWORD:
session_vnc->rfb_screen->passwordCheck = check_rfb_password;
@@ -536,7 +550,7 @@ check_rfb_password (rfbClientPtr rfb_client,
if (memcmp (challenge_encrypted, response_encrypted, len) == 0)
{
grd_session_start (GRD_SESSION (session_vnc));
- grd_session_vnc_detach_source (session_vnc);
+ grd_session_vnc_pause (session_vnc);
return TRUE;
}
else
@@ -731,6 +745,36 @@ grd_session_vnc_detach_source (GrdSessionVnc *session_vnc)
g_clear_pointer (&session_vnc->source, g_source_unref);
}
+gboolean
+grd_session_vnc_is_paused (GrdSessionVnc *session_vnc)
+{
+ return session_vnc->is_paused;
+}
+
+static void
+grd_session_vnc_pause (GrdSessionVnc *session_vnc)
+{
+ if (grd_session_vnc_is_paused (session_vnc))
+ return;
+
+ session_vnc->is_paused = TRUE;
+
+ grd_session_vnc_detach_source (session_vnc);
+ g_signal_emit (session_vnc, signals[PAUSED], 0);
+}
+
+static void
+grd_session_vnc_resume (GrdSessionVnc *session_vnc)
+{
+ if (!grd_session_vnc_is_paused (session_vnc))
+ return;
+
+ session_vnc->is_paused = FALSE;
+
+ grd_session_vnc_attach_source (session_vnc);
+ g_signal_emit (session_vnc, signals[RESUMED], 0);
+}
+
GrdSessionVnc *
grd_session_vnc_new (GrdVncServer *vnc_server,
GSocketConnection *connection)
@@ -748,6 +792,7 @@ grd_session_vnc_new (GrdVncServer *vnc_server,
grd_session_vnc_grab_socket (session_vnc, vnc_socket_grab_func);
grd_session_vnc_attach_source (session_vnc);
+ session_vnc->is_paused = FALSE;
init_vnc_session (session_vnc);
@@ -777,7 +822,7 @@ grd_session_vnc_stop (GrdSession *session)
g_clear_object (&session_vnc->pipewire_stream);
- grd_session_vnc_detach_source (session_vnc);
+ grd_session_vnc_pause (session_vnc);
g_clear_object (&session_vnc->connection);
g_clear_object (&session_vnc->clipboard_vnc);
@@ -837,8 +882,8 @@ grd_session_vnc_stream_ready (GrdSession *session,
G_CALLBACK (on_pipewire_stream_closed),
session_vnc);
- if (!session_vnc->source)
- grd_session_vnc_attach_source (session_vnc);
+ if (grd_session_vnc_is_paused (session_vnc))
+ grd_session_vnc_resume (session_vnc);
}
static void
@@ -859,4 +904,17 @@ grd_session_vnc_class_init (GrdSessionVncClass *klass)
session_class->remote_desktop_session_started =
grd_session_vnc_remote_desktop_session_started;
session_class->stream_ready = grd_session_vnc_stream_ready;
+
+ signals[PAUSED] = g_signal_new ("paused",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ 0,
+ NULL, NULL, NULL,
+ G_TYPE_NONE, 0);
+ signals[RESUMED] = g_signal_new ("resumed",
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ 0,
+ NULL, NULL, NULL,
+ G_TYPE_NONE, 0);
}
--
2.36.1
From 156cd6920fd461a677c3eb848590a88249079303 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Wed, 11 May 2022 11:19:26 +0100
Subject: [PATCH 7/7] session-vnc: Set our own password handling function up
front
libvncserver decides whether to register a auth security handler
@ -1472,7 +1507,7 @@ password prompt.
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/src/grd-session-vnc.c b/src/grd-session-vnc.c
index 9708de0..bc60285 100644
index 39d3ead..6d0e5e2 100644
--- a/src/grd-session-vnc.c
+++ b/src/grd-session-vnc.c
@@ -95,11 +95,6 @@ grd_session_vnc_pause (GrdSessionVnc *session_vnc);
@ -1505,40 +1540,5 @@ index 9708de0..bc60285 100644
rfbProcessEvents (rfb_screen, 0);
}
--
2.34.1
From 539d2c562b8068f1f698468cb87b36b4968c1517 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Mon, 12 Oct 2020 17:34:30 +0200
Subject: [PATCH 7/7] vnc: Copy pixels using the right destination stride
We're copying the pixels in a separate thread managed by PipeWire, and
in this thread, accessing the VNC framebuffer dimension and stride is
racy. Instead of fetching the dimension directly, pass the expected
width and get the stride it will eventually have.
Already before this patch, when the copied pixel end up on the main
thread and the dimension still doesn't match up, the frame will be
dropped.
---
src/grd-session-vnc.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/grd-session-vnc.h b/src/grd-session-vnc.h
index 8a916b7..e85f31e 100644
--- a/src/grd-session-vnc.h
+++ b/src/grd-session-vnc.h
@@ -67,7 +67,8 @@ int grd_session_vnc_get_stride_for_width (GrdSessionVnc *session_vnc,
int grd_session_vnc_get_fd (GrdSessionVnc *session_vnc);
-int grd_session_vnc_get_framebuffer_stride (GrdSessionVnc *session_vnc);
+int grd_session_vnc_get_stride_for_width (GrdSessionVnc *session_vnc,
+ int width);
gboolean grd_session_vnc_is_client_gone (GrdSessionVnc *session_vnc);
--
2.34.1
2.36.1

2
sources
View File

@ -1 +1 @@
SHA512 (gnome-remote-desktop-42.1.tar.xz) = 3e17d6482941fccfe6860d2ca2db50235ee70a26fd8942ee1850addb11006cfb152dd949102a4c573f2b6a29f9f2bb78c9ad5be1cba8622ad5b54f82c509376f
SHA512 (gnome-remote-desktop-42.1.1.tar.xz) = 4fbf9305aa7339d9e7fcbf8df8eea97ba675630f6d01ef9a9f049ca3a3bf930f26b0e993ffe386682906d719b15058ce752e4592a3e710ceceb977000ebb1ce1