[PATCH 1/2] Only parse custom vhost path for virtio interfaces

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It is not used for other network interface models.

https://bugzilla.redhat.com/show_bug.cgi?id=1147195
---
 src/conf/domain_conf.c                             |  6 +++-
 .../qemuxml2argv-tap-vhost-incorrect.xml           | 39 ++++++++++++++++++++++
 .../qemuxml2xmlout-tap-vhost-incorrect.xml         | 38 +++++++++++++++++++++
 tests/qemuxml2xmltest.c                            |  1 +
 4 files changed, 83 insertions(+), 1 deletion(-)
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-tap-vhost-incorrect.xml
 create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-tap-vhost-incorrect.xml

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 4251b13..da3764f 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -7369,6 +7369,7 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt,
     char *vhostuser_path = NULL;
     char *vhostuser_type = NULL;
     char *trustGuestRxFilters = NULL;
+    char *vhost_path = NULL;
     virNWFilterHashTablePtr filterparams = NULL;
     virDomainActualNetDefPtr actual = NULL;
     xmlNodePtr oldnode = ctxt->node;
@@ -7551,7 +7552,7 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt,
                 VIR_FREE(tmp);
 
                 if ((tmp = virXMLPropString(cur, "vhost")))
-                    def->backend.vhost = virFileSanitizePath(tmp);
+                    vhost_path = virFileSanitizePath(tmp);
                 VIR_FREE(tmp);
             }
         }
@@ -7992,6 +7993,8 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt,
             }
             def->driver.virtio.guest.ufo = val;
         }
+        def->backend.vhost = vhost_path;
+        vhost_path = NULL;
     }
 
     def->linkstate = VIR_DOMAIN_NET_INTERFACE_LINK_STATE_DEFAULT;
@@ -8061,6 +8064,7 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt,
     VIR_FREE(addrtype);
     VIR_FREE(trustGuestRxFilters);
     VIR_FREE(ips);
+    VIR_FREE(vhost_path);
     virNWFilterHashTableFree(filterparams);
 
     return def;
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-tap-vhost-incorrect.xml b/tests/qemuxml2argvdata/qemuxml2argv-tap-vhost-incorrect.xml
new file mode 100644
index 0000000..2cf312f
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-tap-vhost-incorrect.xml
@@ -0,0 +1,39 @@
+<domain type='qemu'>
+  <name>test</name>
+  <uuid>bba65c0e-c049-934f-b6aa-4e2c0582acdf</uuid>
+  <memory unit='KiB'>1048576</memory>
+  <currentMemory unit='KiB'>1048576</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='x86_64' machine='pc-0.13'>hvm</type>
+    <boot dev='cdrom'/>
+    <boot dev='hd'/>
+    <bootmenu enable='yes'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu</emulator>
+    <controller type='usb' index='0'/>
+    <controller type='virtio-serial' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
+    </controller>
+    <controller type='ide' index='0'/>
+    <controller type='pci' index='0' model='pci-root'/>
+    <interface type='user'>
+      <mac address='52:54:00:e5:48:58'/>
+      <model type='definitely-not-virtio'/>
+      <driver name='vhost' queues='5'/>
+      <backend tap='/dev/null' vhost='/dev/zero'/>
+    </interface>
+    <serial type='pty'>
+      <target port='0'/>
+    </serial>
+    <console type='pty'>
+      <target type='serial' port='0'/>
+    </console>
+    <memballoon model='virtio'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-tap-vhost-incorrect.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-tap-vhost-incorrect.xml
new file mode 100644
index 0000000..266cbf0
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-tap-vhost-incorrect.xml
@@ -0,0 +1,38 @@
+<domain type='qemu'>
+  <name>test</name>
+  <uuid>bba65c0e-c049-934f-b6aa-4e2c0582acdf</uuid>
+  <memory unit='KiB'>1048576</memory>
+  <currentMemory unit='KiB'>1048576</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='x86_64' machine='pc-0.13'>hvm</type>
+    <boot dev='cdrom'/>
+    <boot dev='hd'/>
+    <bootmenu enable='yes'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu</emulator>
+    <controller type='usb' index='0'/>
+    <controller type='virtio-serial' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
+    </controller>
+    <controller type='ide' index='0'/>
+    <controller type='pci' index='0' model='pci-root'/>
+    <interface type='user'>
+      <mac address='52:54:00:e5:48:58'/>
+      <model type='definitely-not-virtio'/>
+      <backend tap='/dev/null'/>
+    </interface>
+    <serial type='pty'>
+      <target port='0'/>
+    </serial>
+    <console type='pty'>
+      <target type='serial' port='0'/>
+    </console>
+    <memballoon model='virtio'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index a0a1cab..d3dfd9e 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -417,6 +417,7 @@ mymain(void)
     DO_TEST("bios-nvram");
 
     DO_TEST("tap-vhost");
+    DO_TEST_DIFFERENT("tap-vhost-incorrect");
     DO_TEST("shmem");
     DO_TEST("smbios");
 
-- 
2.0.5

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