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Re: [Qemu-devel] [PATCH 3/8] ui: refactor VncDisplay to allow multiple l
From: |
Daniel P. Berrange |
Subject: |
Re: [Qemu-devel] [PATCH 3/8] ui: refactor VncDisplay to allow multiple listening sockets |
Date: |
Fri, 6 Jan 2017 15:28:19 +0000 |
User-agent: |
Mutt/1.7.1 (2016-10-04) |
On Fri, Jan 06, 2017 at 09:23:24AM -0600, Eric Blake wrote:
> On 01/05/2017 10:06 AM, Daniel P. Berrange wrote:
> > Currently there is only a single listener for plain VNC and
> > a single listener for websockets VNC. This means that is
>
> s/is/if/
>
> > getaddrinfo() returns multiple IP addresses, for a hostname,
> > the VNC server can only listen on one of them. This is
> > just bearable if listening on wildcard interface, or if
> > the host only has a single network interface to listen on,
> > but if there are multiple NICs and the VNC server needs
> > to listen on 2 or more specific IP addresses, it can't be
> > done.
> >
> > This refactors the VncDisplay state so that it holds an
> > array of listening sockets, but still only listens on
> > one socket.
> >
> > Signed-off-by: Daniel P. Berrange <address@hidden>
> > ---
> > ui/vnc.c | 103
> > +++++++++++++++++++++++++++++++++++++++++----------------------
> > ui/vnc.h | 10 ++++---
> > 2 files changed, 73 insertions(+), 40 deletions(-)
>
> Are you using git's order directives to put .h files first?
No special git config at all.
> > @@ -3819,30 +3843,36 @@ void vnc_display_open(const char *id, Error **errp)
> > vnc_connect(vd, sioc, false, false);
> > object_unref(OBJECT(sioc));
> > } else {
> > - vd->lsock = qio_channel_socket_new();
> > - qio_channel_set_name(QIO_CHANNEL(vd->lsock), "vnc-listen");
> > - if (qio_channel_socket_listen_sync(vd->lsock, saddr, errp) < 0) {
> > + vd->nlsock = 1;
> > + vd->lsock = g_new0(QIOChannelSocket *, 1);
> > + vd->lsock_tag = g_new0(guint, 1);
>
> Is guint really the best type here...
Yep, guint is what the the Glib main loop uses as the type for
tracking GSource IDs. e.g.
https://developer.gnome.org/glib/stable/glib-The-Main-Event-Loop.html#g-source-get-id
>
> > +++ b/ui/vnc.h
> > @@ -146,10 +146,12 @@ struct VncDisplay
> > int num_exclusive;
> > int connections_limit;
> > VncSharePolicy share_policy;
> > - QIOChannelSocket *lsock;
> > - guint lsock_tag;
> > - QIOChannelSocket *lwebsock;
> > - guint lwebsock_tag;
> > + size_t nlsock;
> > + QIOChannelSocket **lsock;
> > + guint *lsock_tag;
>
> ...and here?
>
> > + size_t nlwebsock;
> > + QIOChannelSocket **lwebsock;
> > + guint *lwebsock_tag;
> > DisplaySurface *ds;
> > DisplayChangeListener dcl;
> > kbd_layout_t *kbd_layout;
> >
>
> Whether or not you tweak the types to something a little more direct (I
> thing guint is more hassle than it's worth when not directly passing the
> field to glib functions),
It'll be passed to g_source_remove later which expects guint
https://developer.gnome.org/glib/stable/glib-The-Main-Event-Loop.html#g-source-remove
> Reviewed-by: Eric Blake <address@hidden>
Regards,
Daniel
--
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- [Qemu-devel] [PATCH 0/8] Support multiple listening sockets per VNC server, Daniel P. Berrange, 2017/01/05
- [Qemu-devel] [PATCH 1/8] ui: fix regression handling bare 'websocket' option to -vnc, Daniel P. Berrange, 2017/01/05
- [Qemu-devel] [PATCH 2/8] ui: fix reporting of VNC auth in query-vnc-servers, Daniel P. Berrange, 2017/01/05
- [Qemu-devel] [PATCH 3/8] ui: refactor VncDisplay to allow multiple listening sockets, Daniel P. Berrange, 2017/01/05
- [Qemu-devel] [PATCH 4/8] ui: refactor code for populating SocketAddress from vnc_display_open, Daniel P. Berrange, 2017/01/05
- [Qemu-devel] [PATCH 6/8] ui: let VNC server listen on all resolved IP addresses, Daniel P. Berrange, 2017/01/05
- [Qemu-devel] [PATCH 5/8] ui: extract code to connect/listen from vnc_display_open, Daniel P. Berrange, 2017/01/05
- [Qemu-devel] [PATCH 7/8] util: add qemu_opt_get_all() to get repeated opts, Daniel P. Berrange, 2017/01/05
- [Qemu-devel] [PATCH 8/8] ui: add ability to specify multiple VNC listen addresses, Daniel P. Berrange, 2017/01/05