On Tue, Mar 10, 2015 at 02:32:04AM -0400, Laine Stump wrote:
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;
Looks sensible, ACK.
As Laine says, please make sure this gets into 1.2.13-maint because it
currently affects all 1.2.13 / Rawhide users.
Also, why isn't there a regression test that would have picked this
up? A trivial reproducer is:
$ guestfish -a /dev/null --network run
but any test case that launches a guest with a network interface as
non-root would have caught this.
Rich.
--
Richard Jones, Virtualization Group, Red Hat
http://people.redhat.com/~rjones
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