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Re: [libvirt] [PATCHv2] qemu: Do fake auto-allocation of ports when generating native command

On 04/29/13 14:48, Michal Privoznik wrote:
On 29.04.2013 14:42, Peter Krempa wrote:
When attempting to generate the native command line from an XML file
that uses graphics port auto allocation, the generated commandline
wouldn't be valid.

This patch adds fake autoallocation of ports as done when starting the
actual machine.
  src/qemu/qemu_driver.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++
  1 file changed, 52 insertions(+)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 2d3b24a..068d6c4 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -5271,6 +5271,58 @@ static char *qemuConnectDomainXMLToNative(virConnectPtr conn,
+            if (needPort || graphics->data.spice.port == -1)
+                graphics->data.spice.port = 5901;
+            if (needTLSPort || graphics->data.spice.tlsPort == -1)
+                graphics->data.spice.tlsPort = 5902;

Shouldn't we be using virPortAllocator to set these ports instead of
hardcoding these values? What if these ports are already taken (by
previously started domain for instance)?

This is in domxml-to-native. I don't think we care if the ports are taken when that API is used. (I'm not even sure if we care enough to work around auto allocation there).



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