[libvirt] [PATCH] conf: tests: fix virDomainNetDefFormat for vhost-user in client mode

[Maxime Leroy]

The mode attribute is required for the source element of vhost-user. Thus
virDomainNetDefFormat should always generate a xml with it, and
not only when the mode is server.

The commit fixes the issue. And it adds a vhostuser interface in 'client' mode
to qemuxml2argv-net-vhostuser.(args|xml) to test this usecase.

Signed-off-by: Maxime Leroy <maxime.leroy at 6wind.com>
---
 src/conf/domain_conf.c                                 | 5 +++--
 tests/qemuxml2argvdata/qemuxml2argv-net-vhostuser.args | 7 +++++--
 tests/qemuxml2argvdata/qemuxml2argv-net-vhostuser.xml  | 7 ++++++-
 3 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 42c0223..73c199e 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -17082,8 +17082,9 @@ virDomainNetDefFormat(virBufferPtr buf,
                 virBufferAddLit(buf, "<source type='unix'");
                 virBufferEscapeString(buf, " path='%s'",
                                       def->data.vhostuser->data.nix.path);
-                if (def->data.vhostuser->data.nix.listen)
-                    virBufferAddLit(buf, " mode='server'");
+                virBufferAsprintf(buf, " mode='%s'",
+                                  def->data.vhostuser->data.nix.listen ?
+                                  "server"  : "client");
                 virBufferAddLit(buf, "/>\n");
             }
             break;
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-net-vhostuser.args b/tests/qemuxml2argvdata/qemuxml2argv-net-vhostuser.args
index cc66ec3..26daac3 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-net-vhostuser.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-net-vhostuser.args
@@ -2,6 +2,9 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \
 /usr/bin/qemu -S -M \
 pc -m 214 -smp 1 -nographic -nodefaults -monitor unix:/tmp/test-monitor,server,nowait \
 -no-acpi -boot c -usb -hda /dev/HostVG/QEMUGuest1 \
--chardev socket,id=charnet0,path=/tmp/vhost.sock,server \
+-chardev socket,id=charnet0,path=/tmp/vhost0.sock,server \
 -netdev type=vhost-user,id=hostnet0,chardev=charnet0 \
--device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:ee:96:6b,bus=pci.0,addr=0x3
+-device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:ee:96:6b,bus=pci.0,addr=0x3 \
+-chardev socket,id=charnet1,path=/tmp/vhost1.sock \
+-netdev type=vhost-user,id=hostnet1,chardev=charnet1 \
+-device virtio-net-pci,netdev=hostnet1,id=net1,mac=52:54:00:ee:96:6c,bus=pci.0,addr=0x4
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-net-vhostuser.xml b/tests/qemuxml2argvdata/qemuxml2argv-net-vhostuser.xml
index b49d48e..e5b6242 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-net-vhostuser.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-net-vhostuser.xml
@@ -25,7 +25,12 @@
     <controller type='pci' index='0' model='pci-root'/>
     <interface type='vhostuser'>
       <mac address='52:54:00:ee:96:6b'/>
-      <source type='unix' path='/tmp/vhost.sock' mode='server'/>
+      <source type='unix' path='/tmp/vhost0.sock' mode='server'/>
+      <model type='virtio'/>
+    </interface>
+    <interface type='vhostuser'>
+      <mac address='52:54:00:ee:96:6c'/>
+      <source type='unix' path='/tmp/vhost1.sock' mode='client'/>
       <model type='virtio'/>
     </interface>
     <memballoon model='none'/>
-- 
1.9.3