[PATCH] qemu: don't fill in nicindexes for session mode libvirtd

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Commit 4bbe1029f fixed a problem in commit f7afeddc by moving the call
to virNetDevGetIndex() to a location common to all interface types (so
that the niceindex array would be filled in for macvtap as well as tap
interfaces), but the location was *too* common, as the original call
to virNetDevGetIndex() had been in a section qualified by "if
(cfg->privileged)". The result was that the "fixed" libvirtd would try
to call virNetDevGetIndex() even for session mode libvirtd, and end up
failing with the log message:

  Unable to open control socket: Operation not permitted

To remedy that, this patch qualifies the call to virNetDevGetIndex()
in its new location with cfg->privileged.

This resolves https://bugzilla.redhat.com/show_bug.cgi?id=1198244
---

If someone (Rich?) needs this pushed before I am awake, please feel
free to push it. (also push to the 1.2.13-maint branch if you do)

 src/qemu/qemu_command.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 1510797..3d1483e 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -7861,6 +7861,7 @@ qemuBuildInterfaceCommandLine(virCommandPtr cmd,
     char **tapfdName = NULL;
     char **vhostfdName = NULL;
     int actualType = virDomainNetGetActualType(net);
+    virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
     virNetDevBandwidthPtr actualBandwidth;
     size_t i;
 
@@ -7936,7 +7937,7 @@ qemuBuildInterfaceCommandLine(virCommandPtr cmd,
         /* network and bridge use a tap device, and direct uses a
          * macvtap device
          */
-        if (nicindexes && nnicindexes && net->ifname) {
+        if (cfg->privileged && nicindexes && nnicindexes && net->ifname) {
             if (virNetDevGetIndex(net->ifname, &nicindex) < 0 ||
                 VIR_APPEND_ELEMENT(*nicindexes, *nnicindexes, nicindex) < 0)
                 goto cleanup;
-- 
2.1.0

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