From 3f0230e926b45905efb597824f59fdf5a4f3da08 Mon Sep 17 00:00:00 2001 From: "Daniel P. Berrange" Date: Mon, 11 Jan 2016 13:17:05 +0000 Subject: [PATCH] vnc: distiguish between ipv4/ipv6 omitted vs set to off The VNC code for interpreting QemuOpts does not currently distinguish between ipv4/ipv6 being omitted, and being set to 'off', because historically the 'ipv4' and 'ipv6' options were just flags which did not accept a value. The upshot is that if someone runs $QEMU -vnc localhost:1,ipv6=off QEMU still uses PF_UNSPEC and thus may still bind to IPv6, when it should use PF_INET. This is another instance of the problem previously fixed for chardevs in commit b77e7c8e99f9ac726c4eaa2fc3461fd886017dc0 Author: Paolo Bonzini Date: Mon Oct 12 15:35:16 2015 +0200 qemu-sockets: fix conversion of ipv4/ipv6 JSON to QemuOpts Reviewed-by: Eric Blake Signed-off-by: Daniel P. Berrange Message-id: 1452518225-11751-6-git-send-email-berrange@redhat.com Signed-off-by: Gerd Hoffmann --- ui/vnc.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/ui/vnc.c b/ui/vnc.c index 54673eb8c7..4c303cee96 100644 --- a/ui/vnc.c +++ b/ui/vnc.c @@ -3501,8 +3501,10 @@ void vnc_display_open(const char *id, Error **errp) const char *websocket = qemu_opt_get(opts, "websocket"); int to = qemu_opt_get_number(opts, "to", 0); - bool has_ipv4 = qemu_opt_get_bool(opts, "ipv4", false); - bool has_ipv6 = qemu_opt_get_bool(opts, "ipv6", false); + bool has_ipv4 = qemu_opt_get(opts, "ipv4"); + bool has_ipv6 = qemu_opt_get(opts, "ipv6"); + bool ipv4 = qemu_opt_get_bool(opts, "ipv4", false); + bool ipv6 = qemu_opt_get_bool(opts, "ipv6", false); saddr = g_new0(SocketAddress, 1); if (websocket) { @@ -3550,8 +3552,10 @@ void vnc_display_open(const char *id, Error **errp) saddr->u.inet->has_to = true; saddr->u.inet->to = to + 5900; } - saddr->u.inet->ipv4 = saddr->u.inet->has_ipv4 = has_ipv4; - saddr->u.inet->ipv6 = saddr->u.inet->has_ipv6 = has_ipv6; + saddr->u.inet->ipv4 = ipv4; + saddr->u.inet->has_ipv4 = has_ipv4; + saddr->u.inet->ipv6 = ipv6; + saddr->u.inet->has_ipv6 = has_ipv6; if (vs->ws_enabled) { wsaddr->type = SOCKET_ADDRESS_KIND_INET; @@ -3563,8 +3567,10 @@ void vnc_display_open(const char *id, Error **errp) wsaddr->u.inet->has_to = true; wsaddr->u.inet->to = to; } - wsaddr->u.inet->ipv4 = wsaddr->u.inet->has_ipv4 = has_ipv4; - wsaddr->u.inet->ipv6 = wsaddr->u.inet->has_ipv6 = has_ipv6; + wsaddr->u.inet->ipv4 = ipv4; + wsaddr->u.inet->has_ipv4 = has_ipv4; + wsaddr->u.inet->ipv6 = ipv6; + wsaddr->u.inet->has_ipv6 = has_ipv6; } } } else {