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-rw-r--r--gnu/packages/display-managers.scm5
-rw-r--r--gnu/packages/patches/lightdm-vnc-ipv6.patch48
2 files changed, 51 insertions, 2 deletions
diff --git a/gnu/packages/display-managers.scm b/gnu/packages/display-managers.scm
index 9ddcef7021..f6c9283a29 100644
--- a/gnu/packages/display-managers.scm
+++ b/gnu/packages/display-managers.scm
@@ -12,7 +12,7 @@
;;; Copyright © 2021 Zheng Junjie <873216071@qq.com>
;;; Copyright © 2021, 2022 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2021 Petr Hodina <phodina@protonmail.com>
-;;; Copyright © 2022 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2022, 2023 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -280,7 +280,8 @@ experience for your users, your family and yourself")
"1wr60c946p8jz9kb8zi4cd8d4mkcy7infbvlfzwajiglc22nblxn"))
(patches (search-patches "lightdm-arguments-ordering.patch"
"lightdm-vncserver-check.patch"
- "lightdm-vnc-color-depth.patch"))))
+ "lightdm-vnc-color-depth.patch"
+ "lightdm-vnc-ipv6.patch"))))
(build-system gnu-build-system)
(arguments
'(#:parallel-tests? #f ; fails when run in parallel
diff --git a/gnu/packages/patches/lightdm-vnc-ipv6.patch b/gnu/packages/patches/lightdm-vnc-ipv6.patch
new file mode 100644
index 0000000000..68e4363d3e
--- /dev/null
+++ b/gnu/packages/patches/lightdm-vnc-ipv6.patch
@@ -0,0 +1,48 @@
+Submitted upstream: https://github.com/canonical/lightdm/pull/312
+
+diff --git a/src/vnc-server.c b/src/vnc-server.c
+index d3500764..00a2fc02 100644
+--- a/src/vnc-server.c
++++ b/src/vnc-server.c
+@@ -126,18 +126,10 @@ vnc_server_start (VNCServer *server)
+
+ g_return_val_if_fail (server != NULL, FALSE);
+
+- g_autoptr(GError) ipv4_error = NULL;
+- priv->socket = open_tcp_socket (G_SOCKET_FAMILY_IPV4, priv->port, priv->listen_address, &ipv4_error);
+- if (ipv4_error)
+- g_warning ("Failed to create IPv4 VNC socket: %s", ipv4_error->message);
+-
+- if (priv->socket)
+- {
+- GSource *source = g_socket_create_source (priv->socket, G_IO_IN, NULL);
+- g_source_set_callback (source, (GSourceFunc) read_cb, server, NULL);
+- g_source_attach (source, NULL);
+- }
+-
++ // Bind to IPv6 first, as this implies binding to 0.0.0.0 in the
++ // Linux kernel default configuration, which would otherwise cause
++ // IPv6 clients to fail with "Error binding to address [::]:5900:
++ // Address already in use" (#266).
+ g_autoptr(GError) ipv6_error = NULL;
+ priv->socket6 = open_tcp_socket (G_SOCKET_FAMILY_IPV6, priv->port, priv->listen_address, &ipv6_error);
+ if (ipv6_error)
+@@ -150,6 +142,18 @@ vnc_server_start (VNCServer *server)
+ g_source_attach (source, NULL);
+ }
+
++ g_autoptr(GError) ipv4_error = NULL;
++ priv->socket = open_tcp_socket (G_SOCKET_FAMILY_IPV4, priv->port, priv->listen_address, &ipv4_error);
++ if (ipv4_error)
++ g_warning ("Failed to create IPv4 VNC socket: %s", ipv4_error->message);
++
++ if (priv->socket)
++ {
++ GSource *source = g_socket_create_source (priv->socket, G_IO_IN, NULL);
++ g_source_set_callback (source, (GSourceFunc) read_cb, server, NULL);
++ g_source_attach (source, NULL);
++ }
++
+ if (!priv->socket && !priv->socket6)
+ return FALSE;
+