[libvirt] [PATCH v4] Implement DNS SRV record into the bridge driver

Michal Novotny minovotn at redhat.com
Mon Dec 5 14:03:14 UTC 2011


Hi,
this is the fourth version of my SRV record for DNSMasq patch rebased
for the current codebase to the bridge driver and libvirt XML file to
include support for the SRV records in the DNS. The syntax is based on
DNSMasq man page and tests for both xml2xml and xml2argv were added as
well. This is basically un-reviewed version 3 of this patch rebased to
the current codebase with changed version information to 0.9.9 as it's
supposed to go in 0.9.9 or later because of current 0.9.8 features
freeze.

Also, the second part of this patch is fixing the networkxml2argv test
to pass both checks, i.e. both unit tests and also syntax check.

Please review,
Michal

Signed-off-by: Michal Novotny <minovotn at redhat.com>
---
 docs/formatnetwork.html.in                         |   12 ++
 docs/schemas/network.rng                           |   26 ++++
 src/conf/network_conf.c                            |  130 +++++++++++++++++++-
 src/conf/network_conf.h                            |   16 +++
 src/network/bridge_driver.c                        |   43 +++++++
 tests/networkxml2argvdata/isolated-network.argv    |   14 ++-
 .../networkxml2argvdata/nat-network-dns-hosts.argv |   12 ++-
 .../nat-network-dns-srv-record-minimal.argv        |   16 +++
 .../nat-network-dns-srv-record-minimal.xml         |   26 ++++
 .../nat-network-dns-srv-record.argv                |   16 +++
 .../nat-network-dns-srv-record.xml                 |   26 ++++
 .../nat-network-dns-txt-record.argv                |   19 ++-
 tests/networkxml2argvdata/nat-network.argv         |   19 ++-
 tests/networkxml2argvdata/netboot-network.argv     |   17 ++-
 .../networkxml2argvdata/netboot-proxy-network.argv |   15 ++-
 tests/networkxml2argvdata/routed-network.argv      |    8 +-
 tests/networkxml2argvtest.c                        |   14 ++-
 .../nat-network-dns-srv-record-minimal.xml         |   26 ++++
 .../nat-network-dns-srv-record.xml                 |   26 ++++
 .../nat-network-dns-srv-record-minimal.xml         |   26 ++++
 .../nat-network-dns-srv-record.xml                 |   26 ++++
 21 files changed, 501 insertions(+), 32 deletions(-)
 create mode 100644 tests/networkxml2argvdata/nat-network-dns-srv-record-minimal.argv
 create mode 100644 tests/networkxml2argvdata/nat-network-dns-srv-record-minimal.xml
 create mode 100644 tests/networkxml2argvdata/nat-network-dns-srv-record.argv
 create mode 100644 tests/networkxml2argvdata/nat-network-dns-srv-record.xml
 create mode 100644 tests/networkxml2xmlin/nat-network-dns-srv-record-minimal.xml
 create mode 100644 tests/networkxml2xmlin/nat-network-dns-srv-record.xml
 create mode 100644 tests/networkxml2xmlout/nat-network-dns-srv-record-minimal.xml
 create mode 100644 tests/networkxml2xmlout/nat-network-dns-srv-record.xml

diff --git a/docs/formatnetwork.html.in b/docs/formatnetwork.html.in
index 02302fa..79cb4ce 100644
--- a/docs/formatnetwork.html.in
+++ b/docs/formatnetwork.html.in
@@ -345,6 +345,7 @@
         <domain name="example.com"/>
         <dns>
           <txt name="example" value="example value" />
+          <srv service="name" protocol="tcp" domain="test-domain-name" target="." port="1024" priority="10" weight="10"/>
           <host ip='192.168.122.2'>
             <hostname>myhost</hostname>
             <hostname>myhostalias</hostname>
@@ -396,6 +397,17 @@
             <span class="since">Since 0.9.3</span>
           </dd>
         </dl>
+        <dl>
+          <dt><code>srv</code></dt>
+          <dd>The <code>dns</code> element can have also 0 or more <code>srv</code>
+            record elements. Each <code>srv</code> record element defines a DNS SRV record
+            and has 2 mandatory and 5 optional attributes. The mandatory attributes
+            are service name and protocol (tcp, udp) and the optional attributes are
+            target, port, priority, weight and domain as defined in DNS server SRV
+            RFC (RFC 2782).
+            <span class="since">Since 0.9.9</span>
+          </dd>
+        </dl>
       </dd>
       <dt><code>ip</code></dt>
       <dd>The <code>address</code> attribute defines an IPv4 address in
diff --git a/docs/schemas/network.rng b/docs/schemas/network.rng
index 937e180..fac0eda 100644
--- a/docs/schemas/network.rng
+++ b/docs/schemas/network.rng
@@ -138,6 +138,19 @@
                 </element>
               </zeroOrMore>
               <zeroOrMore>
+                <element name="srv">
+                  <attribute name="service"><text/></attribute>
+                  <attribute name="protocol"><ref name="protocol"/></attribute>
+                  <optional>
+                    <attribute name="domain"><ref name="dnsName"/></attribute>
+                    <attribute name="target"><text/></attribute>
+                    <attribute name="port"><ref name="unsignedShort"/></attribute>
+                    <attribute name="priority"><ref name="unsignedShort"/></attribute>
+                    <attribute name="weight"><ref name="unsignedShort"/></attribute>
+                  </optional>
+                </element>
+              </zeroOrMore>
+              <zeroOrMore>
                 <element name="host">
                   <attribute name="ip"><ref name="ipv4Addr"/></attribute>
                   <oneOrMore>
@@ -217,6 +230,19 @@
     </element>
   </define>
 
+  <define name='unsignedShort'>
+    <data type='integer'>
+      <param name="minInclusive">0</param>
+      <param name="maxInclusive">65535</param>
+    </data>
+  </define>
+
+  <define name='protocol'>
+    <data type='string'>
+      <param name='pattern'>(tcp)|(udp)</param>
+    </data>
+  </define>
+
   <define name='addr-family'>
     <data type='string'>
       <param name="pattern">(ipv4)|(ipv6)</param>
diff --git a/src/conf/network_conf.c b/src/conf/network_conf.c
index 1058b07..5b293f9 100644
--- a/src/conf/network_conf.c
+++ b/src/conf/network_conf.c
@@ -138,6 +138,15 @@ static void virNetworkDNSDefFree(virNetworkDNSDefPtr def)
             }
         }
         VIR_FREE(def->hosts);
+        if (def->nsrvrecords) {
+            while (def->nsrvrecords--) {
+                VIR_FREE(def->srvrecords[def->nsrvrecords].domain);
+                VIR_FREE(def->srvrecords[def->nsrvrecords].service);
+                VIR_FREE(def->srvrecords[def->nsrvrecords].protocol);
+                VIR_FREE(def->srvrecords[def->nsrvrecords].target);
+            }
+        }
+        VIR_FREE(def->srvrecords);
         VIR_FREE(def);
     }
 }
@@ -553,8 +562,99 @@ error:
 }
 
 static int
+virNetworkDNSSrvDefParseXML(virNetworkDNSDefPtr def,
+                            xmlNodePtr cur,
+                            xmlXPathContextPtr ctxt)
+{
+    char *domain;
+    char *service;
+    char *protocol;
+    char *target;
+    int port;
+    int priority;
+    int weight;
+    int ret = 0;
+    char xpath[1024] = { 0 };
+
+    if (!(service = virXMLPropString(cur, "service"))) {
+        virNetworkReportError(VIR_ERR_XML_DETAIL,
+                              "%s", _("Missing required service attribute in dns srv record"));
+        goto error;
+    }
+
+    if (strlen(service) > DNS_RECORD_LENGTH_SRV) {
+        virNetworkReportError(VIR_ERR_XML_DETAIL,
+                              "%s", _("Service name is too long, limit is %d bytes"), DNS_RECORD_LENGTH_SRV);
+        goto error;
+    }
+
+    if (!(protocol = virXMLPropString(cur, "protocol"))) {
+        virNetworkReportError(VIR_ERR_XML_DETAIL,
+                              _("Missing required protocol attribute in dns srv record '%s'"), service);
+        goto error;
+    }
+
+    /* Check whether protocol value is the supported one */
+    if (STRNEQ(protocol, "tcp") && (STRNEQ(protocol, "udp"))) {
+        virNetworkReportError(VIR_ERR_XML_DETAIL,
+                              _("Invalid protocol attribute value '%s'"), protocol);
+        goto error;
+    }
+
+    if (VIR_REALLOC_N(def->srvrecords, def->nsrvrecords + 1) < 0) {
+        virReportOOMError();
+        goto error;
+    }
+
+    def->srvrecords[def->nsrvrecords].service = service;
+    def->srvrecords[def->nsrvrecords].protocol = protocol;
+    def->srvrecords[def->nsrvrecords].domain = NULL;
+    def->srvrecords[def->nsrvrecords].target = NULL;
+    def->srvrecords[def->nsrvrecords].port = 0;
+    def->srvrecords[def->nsrvrecords].priority = 0;
+    def->srvrecords[def->nsrvrecords].weight = 0;
+
+    /* Following attributes are optional but we had to make sure their NULL above */
+    if ((target = virXMLPropString(cur, "target")) && (domain = virXMLPropString(cur, "domain"))) {
+        snprintf(xpath, sizeof(xpath), "string(//network/dns/srv[@service='%s']/@port)", service);
+        if (virXPathInt(xpath, ctxt, &port))
+            def->srvrecords[def->nsrvrecords].port = port;
+
+        snprintf(xpath, sizeof(xpath), "string(//network/dns/srv[@service='%s']/@priority)", service);
+        if (virXPathInt(xpath, ctxt, &priority))
+            def->srvrecords[def->nsrvrecords].priority = priority;
+
+        snprintf(xpath, sizeof(xpath), "string(//network/dns/srv[@service='%s']/@weight)", service);
+        if (virXPathInt(xpath, ctxt, &weight))
+            def->srvrecords[def->nsrvrecords].weight = weight;
+
+        def->srvrecords[def->nsrvrecords].domain = domain;
+        def->srvrecords[def->nsrvrecords].target = target;
+        def->srvrecords[def->nsrvrecords].port = port;
+        def->srvrecords[def->nsrvrecords].priority = priority;
+        def->srvrecords[def->nsrvrecords].weight = weight;
+    }
+
+    def->nsrvrecords++;
+
+    goto cleanup;
+
+error:
+    VIR_FREE(domain);
+    VIR_FREE(service);
+    VIR_FREE(protocol);
+    VIR_FREE(target);
+
+    ret = 1;
+
+cleanup:
+    return ret;
+}
+
+static int
 virNetworkDNSDefParseXML(virNetworkDNSDefPtr *dnsdef,
-                         xmlNodePtr node)
+                         xmlNodePtr node,
+                         xmlXPathContextPtr ctxt)
 {
     xmlNodePtr cur;
     int ret = -1;
@@ -599,6 +699,11 @@ virNetworkDNSDefParseXML(virNetworkDNSDefPtr *dnsdef,
             name = NULL;
             value = NULL;
         } else if (cur->type == XML_ELEMENT_NODE &&
+            xmlStrEqual(cur->name, BAD_CAST "srv")) {
+            ret = virNetworkDNSSrvDefParseXML(def, cur, ctxt);
+            if (ret < 0)
+                goto error;
+        } else if (cur->type == XML_ELEMENT_NODE &&
             xmlStrEqual(cur->name, BAD_CAST "host")) {
             ret = virNetworkDNSHostsDefParseXML(def, cur);
             if (ret < 0)
@@ -887,7 +992,7 @@ virNetworkDefParseXML(xmlXPathContextPtr ctxt)
 
     dnsNode = virXPathNode("./dns", ctxt);
     if (dnsNode != NULL) {
-        if (virNetworkDNSDefParseXML(&def->dns, dnsNode) < 0)
+        if (virNetworkDNSDefParseXML(&def->dns, dnsNode, ctxt) < 0)
             goto error;
     }
 
@@ -1146,6 +1251,27 @@ virNetworkDNSDefFormat(virBufferPtr buf,
                               def->txtrecords[i].value);
     }
 
+    for (i = 0 ; i < def->nsrvrecords ; i++) {
+        if (def->srvrecords[i].service && def->srvrecords[i].protocol) {
+            virBufferAsprintf(buf, "    <srv service='%s' protocol='%s' ",
+                                  def->srvrecords[i].service,
+                                  def->srvrecords[i].protocol);
+
+            if (def->srvrecords[i].domain)
+                virBufferAsprintf(buf, "domain='%s' ", def->srvrecords[i].domain);
+            if (def->srvrecords[i].target)
+                virBufferAsprintf(buf, "target='%s' ", def->srvrecords[i].target);
+            if (def->srvrecords[i].port)
+                virBufferAsprintf(buf, "port='%d' ", def->srvrecords[i].port);
+            if (def->srvrecords[i].priority)
+                virBufferAsprintf(buf, "priority='%d' ", def->srvrecords[i].priority);
+            if (def->srvrecords[i].weight)
+                virBufferAsprintf(buf, "weight='%d' ", def->srvrecords[i].weight);
+
+            virBufferAsprintf(buf, "/>\n");
+        }
+    }
+
     if (def->nhosts) {
         int ii, j;
 
diff --git a/src/conf/network_conf.h b/src/conf/network_conf.h
index 1be20f8..5ef4878 100644
--- a/src/conf/network_conf.h
+++ b/src/conf/network_conf.h
@@ -24,6 +24,8 @@
 #ifndef __NETWORK_CONF_H__
 # define __NETWORK_CONF_H__
 
+#define DNS_RECORD_LENGTH_SRV  (512 - 30)  /* Limit minus overhead as mentioned in RFC-2782 */
+
 # include <libxml/parser.h>
 # include <libxml/tree.h>
 # include <libxml/xpath.h>
@@ -69,6 +71,18 @@ struct _virNetworkDNSTxtRecordsDef {
     char *value;
 };
 
+typedef struct _virNetworkDNSSrvRecordsDef virNetworkDNSSrvRecordsDef;
+typedef virNetworkDNSSrvRecordsDef *virNetworkDNSSrvRecordsDefPtr;
+struct _virNetworkDNSSrvRecordsDef {
+    char *domain;
+    char *service;
+    char *protocol;
+    char *target;
+    int port;
+    int priority;
+    int weight;
+};
+
 struct _virNetworkDNSHostsDef {
     virSocketAddr ip;
     int nnames;
@@ -82,6 +96,8 @@ struct _virNetworkDNSDef {
     virNetworkDNSTxtRecordsDefPtr txtrecords;
     unsigned int nhosts;
     virNetworkDNSHostsDefPtr hosts;
+    unsigned int nsrvrecords;
+    virNetworkDNSSrvRecordsDefPtr srvrecords;
 };
 
 typedef struct _virNetworkDNSDef *virNetworkDNSDefPtr;
diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
index 63338a2..0c0e7a7 100644
--- a/src/network/bridge_driver.c
+++ b/src/network/bridge_driver.c
@@ -527,6 +527,49 @@ networkBuildDnsmasqArgv(virNetworkObjPtr network,
             virCommandAddArgPair(cmd, "--txt-record", record);
             VIR_FREE(record);
         }
+
+        for (i = 0; i < dns->nsrvrecords; i++) {
+            char *record = NULL;
+            char *recordPort = NULL;
+            char *recordPriority = NULL;
+            char *recordWeight = NULL;
+
+            if (dns->srvrecords[i].service && dns->srvrecords[i].protocol) {
+                if (dns->srvrecords[i].port) {
+                    if (virAsprintf(&recordPort, "%d", dns->srvrecords[i].port) < 0) {
+                        virReportOOMError();
+                        goto cleanup;
+                    }
+                }
+                if (dns->srvrecords[i].priority) {
+                    if (virAsprintf(&recordPriority, "%d", dns->srvrecords[i].priority) < 0) {
+                        virReportOOMError();
+                        goto cleanup;
+                    }
+                }
+                if (dns->srvrecords[i].weight) {
+                    if (virAsprintf(&recordWeight, "%d", dns->srvrecords[i].weight) < 0) {
+                        virReportOOMError();
+                        goto cleanup;
+                    }
+                }
+
+                if (virAsprintf(&record, "%s.%s.%s,%s,%s,%s,%s",
+                                dns->srvrecords[i].service,
+                                dns->srvrecords[i].protocol,
+                                dns->srvrecords[i].domain   ? dns->srvrecords[i].domain : "",
+                                dns->srvrecords[i].target   ? dns->srvrecords[i].target : "",
+                                recordPort                  ? recordPort                : "",
+                                recordPriority              ? recordPriority            : "",
+                                recordWeight                ? recordWeight              : "") < 0) {
+                    virReportOOMError();
+                    goto cleanup;
+                }
+
+                virCommandAddArgPair(cmd, "--srv-host", record);
+                VIR_FREE(record);
+            }
+        }
     }
 
     /*
diff --git a/tests/networkxml2argvdata/isolated-network.argv b/tests/networkxml2argvdata/isolated-network.argv
index 7ea2e94..4936d1b 100644
--- a/tests/networkxml2argvdata/isolated-network.argv
+++ b/tests/networkxml2argvdata/isolated-network.argv
@@ -1,6 +1,12 @@
-/usr/sbin/dnsmasq --strict-order --bind-interfaces --conf-file= \
---except-interface lo --dhcp-option=3 --no-resolv \
+/usr/sbin/dnsmasq \
+--strict-order \
+--bind-interfaces \
+--conf-file= \
+--except-interface lo \
+--dhcp-option=3 \
+--no-resolv \
 --listen-address 192.168.152.1 \
 --dhcp-range 192.168.152.2,192.168.152.254 \
---dhcp-leasefile=/var/lib/libvirt/dnsmasq/private.leases --dhcp-lease-max=253 \
---dhcp-no-override\
+--dhcp-leasefile=/var/lib/libvirt/dnsmasq/private.leases \
+--dhcp-lease-max=253 \
+--dhcp-no-override
diff --git a/tests/networkxml2argvdata/nat-network-dns-hosts.argv b/tests/networkxml2argvdata/nat-network-dns-hosts.argv
index 2158df8..bdf8376 100644
--- a/tests/networkxml2argvdata/nat-network-dns-hosts.argv
+++ b/tests/networkxml2argvdata/nat-network-dns-hosts.argv
@@ -1,3 +1,9 @@
-/usr/sbin/dnsmasq --strict-order --bind-interfaces --domain example.com \
---conf-file= --except-interface lo --listen-address 192.168.122.1 \
---expand-hosts --addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts\
+/usr/sbin/dnsmasq \
+--strict-order \
+--bind-interfaces \
+--domain example.com \
+--conf-file= \
+--except-interface lo \
+--listen-address 192.168.122.1 \
+--expand-hosts \
+--addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts
diff --git a/tests/networkxml2argvdata/nat-network-dns-srv-record-minimal.argv b/tests/networkxml2argvdata/nat-network-dns-srv-record-minimal.argv
new file mode 100644
index 0000000..7005078
--- /dev/null
+++ b/tests/networkxml2argvdata/nat-network-dns-srv-record-minimal.argv
@@ -0,0 +1,16 @@
+/usr/sbin/dnsmasq \
+--strict-order \
+--bind-interfaces \
+--conf-file= \
+--except-interface lo \
+--srv-host=name.tcp.,,,, \
+--listen-address 192.168.122.1 \
+--listen-address 192.168.123.1 \
+--listen-address 2001:db8:ac10:fe01::1 \
+--listen-address 2001:db8:ac10:fd01::1 \
+--listen-address 10.24.10.1 \
+--dhcp-range 192.168.122.2,192.168.122.254 \
+--dhcp-leasefile=/var/lib/libvirt/dnsmasq/default.leases \
+--dhcp-lease-max=253 \
+--dhcp-no-override \
+--dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile
diff --git a/tests/networkxml2argvdata/nat-network-dns-srv-record-minimal.xml b/tests/networkxml2argvdata/nat-network-dns-srv-record-minimal.xml
new file mode 100644
index 0000000..e9b7680
--- /dev/null
+++ b/tests/networkxml2argvdata/nat-network-dns-srv-record-minimal.xml
@@ -0,0 +1,26 @@
+<network>
+  <name>default</name>
+  <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid>
+  <forward dev='eth1' mode='nat'>
+    <interface dev='eth1'/>
+  </forward>
+  <bridge name='virbr0' stp='on' delay='0' />
+  <dns>
+    <srv service='name' protocol='tcp' />
+  </dns>
+  <ip address='192.168.122.1' netmask='255.255.255.0'>
+    <dhcp>
+      <range start='192.168.122.2' end='192.168.122.254' />
+      <host mac='00:16:3e:77:e2:ed' name='a.example.com' ip='192.168.122.10' />
+      <host mac='00:16:3e:3e:a9:1a' name='b.example.com' ip='192.168.122.11' />
+    </dhcp>
+  </ip>
+  <ip family='ipv4' address='192.168.123.1' netmask='255.255.255.0'>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fe01::1' prefix='64'>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'>
+  </ip>
+  <ip family='ipv4' address='10.24.10.1'>
+  </ip>
+</network>
diff --git a/tests/networkxml2argvdata/nat-network-dns-srv-record.argv b/tests/networkxml2argvdata/nat-network-dns-srv-record.argv
new file mode 100644
index 0000000..ebb3942
--- /dev/null
+++ b/tests/networkxml2argvdata/nat-network-dns-srv-record.argv
@@ -0,0 +1,16 @@
+/usr/sbin/dnsmasq \
+--strict-order \
+--bind-interfaces \
+--conf-file= \
+--except-interface lo \
+--srv-host=name.tcp.test-domain-name,.,1024,10,10 \
+--listen-address 192.168.122.1 \
+--listen-address 192.168.123.1 \
+--listen-address 2001:db8:ac10:fe01::1 \
+--listen-address 2001:db8:ac10:fd01::1 \
+--listen-address 10.24.10.1 \
+--dhcp-range 192.168.122.2,192.168.122.254 \
+--dhcp-leasefile=/var/lib/libvirt/dnsmasq/default.leases \
+--dhcp-lease-max=253 \
+--dhcp-no-override \
+--dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile
diff --git a/tests/networkxml2argvdata/nat-network-dns-srv-record.xml b/tests/networkxml2argvdata/nat-network-dns-srv-record.xml
new file mode 100644
index 0000000..4be85b5
--- /dev/null
+++ b/tests/networkxml2argvdata/nat-network-dns-srv-record.xml
@@ -0,0 +1,26 @@
+<network>
+  <name>default</name>
+  <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid>
+  <forward dev='eth1' mode='nat'>
+    <interface dev='eth1'/>
+  </forward>
+  <bridge name='virbr0' stp='on' delay='0' />
+  <dns>
+    <srv service='name' protocol='tcp' domain='test-domain-name' target='.' port='1024' priority='10' weight='10' />
+  </dns>
+  <ip address='192.168.122.1' netmask='255.255.255.0'>
+    <dhcp>
+      <range start='192.168.122.2' end='192.168.122.254' />
+      <host mac='00:16:3e:77:e2:ed' name='a.example.com' ip='192.168.122.10' />
+      <host mac='00:16:3e:3e:a9:1a' name='b.example.com' ip='192.168.122.11' />
+    </dhcp>
+  </ip>
+  <ip family='ipv4' address='192.168.123.1' netmask='255.255.255.0'>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fe01::1' prefix='64'>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'>
+  </ip>
+  <ip family='ipv4' address='10.24.10.1'>
+  </ip>
+</network>
diff --git a/tests/networkxml2argvdata/nat-network-dns-txt-record.argv b/tests/networkxml2argvdata/nat-network-dns-txt-record.argv
index be6ba4b..5c35aae 100644
--- a/tests/networkxml2argvdata/nat-network-dns-txt-record.argv
+++ b/tests/networkxml2argvdata/nat-network-dns-txt-record.argv
@@ -1,9 +1,16 @@
-/usr/sbin/dnsmasq --strict-order --bind-interfaces --conf-file= \
---except-interface lo --txt-record=example,example value \
---listen-address 192.168.122.1 --listen-address 192.168.123.1 \
+/usr/sbin/dnsmasq \
+--strict-order \
+--bind-interfaces \
+--conf-file= \
+--except-interface lo \
+--txt-record=example,example value \
+--listen-address 192.168.122.1 \
+--listen-address 192.168.123.1 \
 --listen-address 2001:db8:ac10:fe01::1 \
---listen-address 2001:db8:ac10:fd01::1 --listen-address 10.24.10.1 \
+--listen-address 2001:db8:ac10:fd01::1 \
+--listen-address 10.24.10.1 \
 --dhcp-range 192.168.122.2,192.168.122.254 \
 --dhcp-leasefile=/var/lib/libvirt/dnsmasq/default.leases \
---dhcp-lease-max=253 --dhcp-no-override \
---dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile\
+--dhcp-lease-max=253 \
+--dhcp-no-override \
+--dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile
diff --git a/tests/networkxml2argvdata/nat-network.argv b/tests/networkxml2argvdata/nat-network.argv
index d7faee2..e22de4c 100644
--- a/tests/networkxml2argvdata/nat-network.argv
+++ b/tests/networkxml2argvdata/nat-network.argv
@@ -1,8 +1,15 @@
-/usr/sbin/dnsmasq --strict-order --bind-interfaces --conf-file= \
---except-interface lo --listen-address 192.168.122.1 \
---listen-address 192.168.123.1 --listen-address 2001:db8:ac10:fe01::1 \
---listen-address 2001:db8:ac10:fd01::1 --listen-address 10.24.10.1 \
+/usr/sbin/dnsmasq \
+--strict-order \
+--bind-interfaces \
+--conf-file= \
+--except-interface lo \
+--listen-address 192.168.122.1 \
+--listen-address 192.168.123.1 \
+--listen-address 2001:db8:ac10:fe01::1 \
+--listen-address 2001:db8:ac10:fd01::1 \
+--listen-address 10.24.10.1 \
 --dhcp-range 192.168.122.2,192.168.122.254 \
 --dhcp-leasefile=/var/lib/libvirt/dnsmasq/default.leases \
---dhcp-lease-max=253 --dhcp-no-override \
---dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile\
+--dhcp-lease-max=253 \
+--dhcp-no-override \
+--dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile
diff --git a/tests/networkxml2argvdata/netboot-network.argv b/tests/networkxml2argvdata/netboot-network.argv
index 78e873c..bf8ff5e 100644
--- a/tests/networkxml2argvdata/netboot-network.argv
+++ b/tests/networkxml2argvdata/netboot-network.argv
@@ -1,6 +1,15 @@
-/usr/sbin/dnsmasq --strict-order --bind-interfaces --domain example.com \
---conf-file= --except-interface lo --listen-address 192.168.122.1 \
+/usr/sbin/dnsmasq \
+--strict-order \
+--bind-interfaces \
+--domain example.com \
+--conf-file= \
+--except-interface lo \
+--listen-address 192.168.122.1 \
 --dhcp-range 192.168.122.2,192.168.122.254 \
 --dhcp-leasefile=/var/lib/libvirt/dnsmasq/netboot.leases \
---dhcp-lease-max=253 --dhcp-no-override --expand-hosts --enable-tftp \
---tftp-root /var/lib/tftproot --dhcp-boot pxeboot.img\
+--dhcp-lease-max=253 \
+--dhcp-no-override \
+--expand-hosts \
+--enable-tftp \
+--tftp-root /var/lib/tftproot \
+--dhcp-boot pxeboot.img
diff --git a/tests/networkxml2argvdata/netboot-proxy-network.argv b/tests/networkxml2argvdata/netboot-proxy-network.argv
index 5fe1b8e..29935ea 100644
--- a/tests/networkxml2argvdata/netboot-proxy-network.argv
+++ b/tests/networkxml2argvdata/netboot-proxy-network.argv
@@ -1,6 +1,13 @@
-/usr/sbin/dnsmasq --strict-order --bind-interfaces --domain example.com \
---conf-file= --except-interface lo --listen-address 192.168.122.1 \
+/usr/sbin/dnsmasq \
+--strict-order \
+--bind-interfaces \
+--domain example.com \
+--conf-file= \
+--except-interface lo \
+--listen-address 192.168.122.1 \
 --dhcp-range 192.168.122.2,192.168.122.254 \
 --dhcp-leasefile=/var/lib/libvirt/dnsmasq/netboot.leases \
---dhcp-lease-max=253 --dhcp-no-override --expand-hosts \
---dhcp-boot pxeboot.img,,10.20.30.40\
+--dhcp-lease-max=253 \
+--dhcp-no-override \
+--expand-hosts \
+--dhcp-boot pxeboot.img,,10.20.30.40
diff --git a/tests/networkxml2argvdata/routed-network.argv b/tests/networkxml2argvdata/routed-network.argv
index d059630..79c319b 100644
--- a/tests/networkxml2argvdata/routed-network.argv
+++ b/tests/networkxml2argvdata/routed-network.argv
@@ -1,2 +1,6 @@
-/usr/sbin/dnsmasq --strict-order --bind-interfaces --conf-file= \
---except-interface lo --listen-address 192.168.122.1\
+/usr/sbin/dnsmasq \
+--strict-order \
+--bind-interfaces \
+--conf-file= \
+--except-interface lo \
+--listen-address 192.168.122.1
diff --git a/tests/networkxml2argvtest.c b/tests/networkxml2argvtest.c
index 4a11d6f..4223cb7 100644
--- a/tests/networkxml2argvtest.c
+++ b/tests/networkxml2argvtest.c
@@ -18,6 +18,7 @@
 static int testCompareXMLToArgvFiles(const char *inxml, const char *outargv) {
     char *inXmlData = NULL;
     char *outArgvData = NULL;
+    char *actual_tmp = NULL;
     char *actual = NULL;
     int ret = -1;
     virNetworkDefPtr dev = NULL;
@@ -47,9 +48,17 @@ static int testCompareXMLToArgvFiles(const char *inxml, const char *outargv) {
     if (networkBuildDhcpDaemonCommandLine(obj, &cmd, pidfile, dctx) < 0)
         goto fail;
 
-    if (!(actual = virCommandToString(cmd)))
+    if (!(actual_tmp = virCommandToString(cmd)))
         goto fail;
 
+    if (VIR_ALLOC_N( actual, (strlen(actual_tmp) + 3) * sizeof(char) ) < 0)
+        goto fail;
+
+    /* A little hack to make it working for both check and syntax-check */
+    memcpy(actual, actual_tmp, strlen(actual_tmp));
+    actual[ strlen(actual_tmp) ] = '\n';
+    actual[ strlen(actual_tmp) + 1 ] = 0;
+
     if (STRNEQ(outArgvData, actual)) {
         virtTestDifference(stderr, outArgvData, actual);
         goto fail;
@@ -61,6 +70,7 @@ static int testCompareXMLToArgvFiles(const char *inxml, const char *outargv) {
     free(inXmlData);
     free(outArgvData);
     free(actual);
+    free(actual_tmp);
     VIR_FREE(pidfile);
     virCommandFree(cmd);
     virNetworkObjFree(obj);
@@ -120,6 +130,8 @@ mymain(void)
     DO_TEST("netboot-network");
     DO_TEST("netboot-proxy-network");
     DO_TEST("nat-network-dns-txt-record");
+    DO_TEST("nat-network-dns-srv-record");
+    DO_TEST("nat-network-dns-srv-record-minimal");
     DO_TEST("nat-network-dns-hosts");
 
     return (ret==0 ? EXIT_SUCCESS : EXIT_FAILURE);
diff --git a/tests/networkxml2xmlin/nat-network-dns-srv-record-minimal.xml b/tests/networkxml2xmlin/nat-network-dns-srv-record-minimal.xml
new file mode 100644
index 0000000..e9b7680
--- /dev/null
+++ b/tests/networkxml2xmlin/nat-network-dns-srv-record-minimal.xml
@@ -0,0 +1,26 @@
+<network>
+  <name>default</name>
+  <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid>
+  <forward dev='eth1' mode='nat'>
+    <interface dev='eth1'/>
+  </forward>
+  <bridge name='virbr0' stp='on' delay='0' />
+  <dns>
+    <srv service='name' protocol='tcp' />
+  </dns>
+  <ip address='192.168.122.1' netmask='255.255.255.0'>
+    <dhcp>
+      <range start='192.168.122.2' end='192.168.122.254' />
+      <host mac='00:16:3e:77:e2:ed' name='a.example.com' ip='192.168.122.10' />
+      <host mac='00:16:3e:3e:a9:1a' name='b.example.com' ip='192.168.122.11' />
+    </dhcp>
+  </ip>
+  <ip family='ipv4' address='192.168.123.1' netmask='255.255.255.0'>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fe01::1' prefix='64'>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'>
+  </ip>
+  <ip family='ipv4' address='10.24.10.1'>
+  </ip>
+</network>
diff --git a/tests/networkxml2xmlin/nat-network-dns-srv-record.xml b/tests/networkxml2xmlin/nat-network-dns-srv-record.xml
new file mode 100644
index 0000000..4be85b5
--- /dev/null
+++ b/tests/networkxml2xmlin/nat-network-dns-srv-record.xml
@@ -0,0 +1,26 @@
+<network>
+  <name>default</name>
+  <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid>
+  <forward dev='eth1' mode='nat'>
+    <interface dev='eth1'/>
+  </forward>
+  <bridge name='virbr0' stp='on' delay='0' />
+  <dns>
+    <srv service='name' protocol='tcp' domain='test-domain-name' target='.' port='1024' priority='10' weight='10' />
+  </dns>
+  <ip address='192.168.122.1' netmask='255.255.255.0'>
+    <dhcp>
+      <range start='192.168.122.2' end='192.168.122.254' />
+      <host mac='00:16:3e:77:e2:ed' name='a.example.com' ip='192.168.122.10' />
+      <host mac='00:16:3e:3e:a9:1a' name='b.example.com' ip='192.168.122.11' />
+    </dhcp>
+  </ip>
+  <ip family='ipv4' address='192.168.123.1' netmask='255.255.255.0'>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fe01::1' prefix='64'>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'>
+  </ip>
+  <ip family='ipv4' address='10.24.10.1'>
+  </ip>
+</network>
diff --git a/tests/networkxml2xmlout/nat-network-dns-srv-record-minimal.xml b/tests/networkxml2xmlout/nat-network-dns-srv-record-minimal.xml
new file mode 100644
index 0000000..e9b7680
--- /dev/null
+++ b/tests/networkxml2xmlout/nat-network-dns-srv-record-minimal.xml
@@ -0,0 +1,26 @@
+<network>
+  <name>default</name>
+  <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid>
+  <forward dev='eth1' mode='nat'>
+    <interface dev='eth1'/>
+  </forward>
+  <bridge name='virbr0' stp='on' delay='0' />
+  <dns>
+    <srv service='name' protocol='tcp' />
+  </dns>
+  <ip address='192.168.122.1' netmask='255.255.255.0'>
+    <dhcp>
+      <range start='192.168.122.2' end='192.168.122.254' />
+      <host mac='00:16:3e:77:e2:ed' name='a.example.com' ip='192.168.122.10' />
+      <host mac='00:16:3e:3e:a9:1a' name='b.example.com' ip='192.168.122.11' />
+    </dhcp>
+  </ip>
+  <ip family='ipv4' address='192.168.123.1' netmask='255.255.255.0'>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fe01::1' prefix='64'>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'>
+  </ip>
+  <ip family='ipv4' address='10.24.10.1'>
+  </ip>
+</network>
diff --git a/tests/networkxml2xmlout/nat-network-dns-srv-record.xml b/tests/networkxml2xmlout/nat-network-dns-srv-record.xml
new file mode 100644
index 0000000..4be85b5
--- /dev/null
+++ b/tests/networkxml2xmlout/nat-network-dns-srv-record.xml
@@ -0,0 +1,26 @@
+<network>
+  <name>default</name>
+  <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid>
+  <forward dev='eth1' mode='nat'>
+    <interface dev='eth1'/>
+  </forward>
+  <bridge name='virbr0' stp='on' delay='0' />
+  <dns>
+    <srv service='name' protocol='tcp' domain='test-domain-name' target='.' port='1024' priority='10' weight='10' />
+  </dns>
+  <ip address='192.168.122.1' netmask='255.255.255.0'>
+    <dhcp>
+      <range start='192.168.122.2' end='192.168.122.254' />
+      <host mac='00:16:3e:77:e2:ed' name='a.example.com' ip='192.168.122.10' />
+      <host mac='00:16:3e:3e:a9:1a' name='b.example.com' ip='192.168.122.11' />
+    </dhcp>
+  </ip>
+  <ip family='ipv4' address='192.168.123.1' netmask='255.255.255.0'>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fe01::1' prefix='64'>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'>
+  </ip>
+  <ip family='ipv4' address='10.24.10.1'>
+  </ip>
+</network>
-- 
1.7.7.3




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