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[libvirt] [PATCH 1/3] leasetime support for <dhcp> globally



From: Alberto Ruiz <aruiz gnome org>

---
 docs/schemas/basictypes.rng                       | 16 +++++
 docs/schemas/network.rng                          |  8 +++
 src/conf/network_conf.c                           | 78 ++++++++++++++++++++++-
 src/conf/network_conf.h                           |  3 +-
 src/network/bridge_driver.c                       | 49 +++++++++++++-
 tests/networkxml2confdata/leasetime-days.conf     | 17 +++++
 tests/networkxml2confdata/leasetime-days.xml      | 18 ++++++
 tests/networkxml2confdata/leasetime-hours.conf    | 17 +++++
 tests/networkxml2confdata/leasetime-hours.xml     | 18 ++++++
 tests/networkxml2confdata/leasetime-infinite.conf | 17 +++++
 tests/networkxml2confdata/leasetime-infinite.xml  | 18 ++++++
 tests/networkxml2confdata/leasetime-minutes.conf  | 17 +++++
 tests/networkxml2confdata/leasetime-minutes.xml   | 18 ++++++
 tests/networkxml2confdata/leasetime-seconds.conf  | 17 +++++
 tests/networkxml2confdata/leasetime-seconds.xml   | 18 ++++++
 tests/networkxml2confdata/leasetime.conf          | 17 +++++
 tests/networkxml2confdata/leasetime.xml           | 18 ++++++
 tests/networkxml2conftest.c                       |  7 ++
 18 files changed, 368 insertions(+), 3 deletions(-)
 create mode 100644 tests/networkxml2confdata/leasetime-days.conf
 create mode 100644 tests/networkxml2confdata/leasetime-days.xml
 create mode 100644 tests/networkxml2confdata/leasetime-hours.conf
 create mode 100644 tests/networkxml2confdata/leasetime-hours.xml
 create mode 100644 tests/networkxml2confdata/leasetime-infinite.conf
 create mode 100644 tests/networkxml2confdata/leasetime-infinite.xml
 create mode 100644 tests/networkxml2confdata/leasetime-minutes.conf
 create mode 100644 tests/networkxml2confdata/leasetime-minutes.xml
 create mode 100644 tests/networkxml2confdata/leasetime-seconds.conf
 create mode 100644 tests/networkxml2confdata/leasetime-seconds.xml
 create mode 100644 tests/networkxml2confdata/leasetime.conf
 create mode 100644 tests/networkxml2confdata/leasetime.xml

diff --git a/docs/schemas/basictypes.rng b/docs/schemas/basictypes.rng
index 1b4f980e7..8a76c235a 100644
--- a/docs/schemas/basictypes.rng
+++ b/docs/schemas/basictypes.rng
@@ -518,4 +518,20 @@
     </element>
   </define>
 
+  <define name="leaseTimeUnit">
+    <choice>
+      <value>seconds</value>
+      <value>minutes</value>
+      <value>hours</value>
+      <value>days</value>
+    </choice>
+  </define>
+
+  <define name="leaseTime">
+    <data type="long">
+      <param name="minInclusive">-1</param>
+      <param name="maxInclusive">4294967295</param>
+    </data>
+  </define>
+
 </grammar>
diff --git a/docs/schemas/network.rng b/docs/schemas/network.rng
index 1a18e64b2..4b8056ab6 100644
--- a/docs/schemas/network.rng
+++ b/docs/schemas/network.rng
@@ -340,6 +340,14 @@
               <!-- Define the range(s) of IP addresses that the DHCP
                    server should hand out -->
               <element name="dhcp">
+                <optional>
+                  <element name="leasetime">
+                    <optional>
+                      <attribute name="unit"><ref name="leaseTimeUnit"/></attribute>
+                    </optional>
+                    <ref name="leaseTime"/>
+                  </element>
+                </optional>
                 <zeroOrMore>
                   <element name="range">
                     <attribute name="start"><ref name="ipAddr"/></attribute>
diff --git a/src/conf/network_conf.c b/src/conf/network_conf.c
index aa397768c..6f051493f 100644
--- a/src/conf/network_conf.c
+++ b/src/conf/network_conf.c
@@ -30,6 +30,8 @@
 #include <fcntl.h>
 #include <string.h>
 #include <dirent.h>
+#include <stdlib.h>
+#include <inttypes.h>
 
 #include "virerror.h"
 #include "datatypes.h"
@@ -1031,12 +1033,82 @@ virNetworkDHCPHostDefParseXML(const char *networkName,
     return ret;
 }
 
+static int64_t
+virNetworkDHCPDefGetLeaseTime (xmlNodePtr node,
+                               xmlXPathContextPtr ctxt,
+                               bool *error)
+{
+    int64_t multiplier, result = -1;
+    char *leaseString, *leaseUnit;
+    xmlNodePtr save;
+
+    *error = 0;
+
+    save = ctxt->node;
+    ctxt->node = node;
+
+    leaseString = virXPathString ("string(./leasetime/text())", ctxt);
+    leaseUnit   = virXPathString ("string(./leasetime/@unit)", ctxt);
+
+    /* If value is not present we set the value to -2 */
+    if (leaseString == NULL) {
+        result = -2;
+        goto cleanup;
+    }
+
+    if (leaseUnit == NULL || strcmp (leaseUnit, "seconds") == 0)
+        multiplier = 1;
+    else if (strcmp (leaseUnit, "minutes") == 0)
+        multiplier = 60;
+    else if (strcmp (leaseUnit, "hours") == 0)
+        multiplier = 60 * 60;
+    else if (strcmp (leaseUnit, "days") == 0)
+        multiplier = 60 * 60 * 24;
+    else {
+        virReportError(VIR_ERR_XML_ERROR,
+                       _("invalid value for unit parameter in <leasetime> element found in <dhcp> network, "
+                         "only 'seconds', 'minutes', 'hours' or 'days' are valid: %s"),
+                       leaseUnit);
+        *error = 1;
+        goto cleanup;
+    }
+
+    errno = 0;
+    result = (int64_t) strtoll((const char*)leaseString, NULL, 10);
+
+    /* Report any errors parsing the string */
+    if (errno != 0) {
+        virReportError(VIR_ERR_XML_ERROR,
+                       _("<leasetime> value could not be converted to a signed integer: %s"),
+                      leaseString);
+        *error = 1;
+        goto cleanup;
+    }
+
+    result = result * multiplier;
+
+    if (result > UINT32_MAX) {
+        virReportError(VIR_ERR_XML_ERROR,
+                       _("<leasetime> value cannot be greater than the equivalent of %" PRIo32 " seconds : %" PRId64),
+                       UINT32_MAX, result);
+        *error = 1;
+    }
+
+cleanup:
+    VIR_FREE(leaseString);
+    VIR_FREE(leaseUnit);
+    ctxt->node = save;
+    return result;
+}
+
 static int
 virNetworkDHCPDefParseXML(const char *networkName,
                           xmlNodePtr node,
+                          xmlXPathContextPtr ctxt,
                           virNetworkIPDefPtr def)
 {
     int ret = -1;
+    bool error;
     xmlNodePtr cur;
     virSocketAddrRange range;
     virNetworkDHCPHostDef host;
@@ -1044,6 +1116,10 @@ virNetworkDHCPDefParseXML(const char *networkName,
     memset(&range, 0, sizeof(range));
     memset(&host, 0, sizeof(host));
 
+    def->leasetime = virNetworkDHCPDefGetLeaseTime (node, ctxt, &error);
+    if (error)
+        goto cleanup;
+
     cur = node->children;
     while (cur != NULL) {
         if (cur->type == XML_ELEMENT_NODE &&
@@ -1607,7 +1683,7 @@ virNetworkIPDefParseXML(const char *networkName,
     while (cur != NULL) {
         if (cur->type == XML_ELEMENT_NODE &&
             xmlStrEqual(cur->name, BAD_CAST "dhcp")) {
-            if (virNetworkDHCPDefParseXML(networkName, cur, def) < 0)
+            if (virNetworkDHCPDefParseXML(networkName, cur, ctxt, def) < 0)
                 goto cleanup;
         } else if (cur->type == XML_ELEMENT_NODE &&
                    xmlStrEqual(cur->name, BAD_CAST "tftp")) {
diff --git a/src/conf/network_conf.h b/src/conf/network_conf.h
index 3b227db6f..f7557f581 100644
--- a/src/conf/network_conf.h
+++ b/src/conf/network_conf.h
@@ -170,7 +170,8 @@ struct _virNetworkIPDef {
     char *tftproot;
     char *bootfile;
     virSocketAddr bootserver;
-   };
+    int64_t leasetime;
+};
 
 typedef struct _virNetworkForwardIfDef virNetworkForwardIfDef;
 typedef virNetworkForwardIfDef *virNetworkForwardIfDefPtr;
diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c
index 7b99acafa..e51e469c8 100644
--- a/src/network/bridge_driver.c
+++ b/src/network/bridge_driver.c
@@ -41,6 +41,8 @@
 #include <sys/ioctl.h>
 #include <net/if.h>
 #include <dirent.h>
+#include <inttypes.h>
+#include <stdint.h>
 #if HAVE_SYS_SYSCTL_H
 # include <sys/sysctl.h>
 #endif
@@ -903,6 +905,40 @@ networkBuildDnsmasqHostsList(dnsmasqContext *dctx,
     return 0;
 }
 
+/* translates the leasetime value into a dnsmasq configuration string for dhcp-range/host */
+static char *
+networkDnsmasqConfLeaseValueToString (int64_t leasetime)
+{
+    char *result = NULL;
+    virBuffer leasebuf = VIR_BUFFER_INITIALIZER;
+
+    /* Leasetime parameter set on the XML */
+    /* Less than -1 means there was no value set */
+    if (leasetime < -1) {
+        virBufferAsprintf(&leasebuf, "%s", "");
+    }
+    /* -1 means no expiration */
+    else if (leasetime == -1)
+        virBufferAsprintf(&leasebuf, ",infinite");
+    /* Minimum expiry value is 120 */
+    /* TODO: Discuss if we should up as we do here or just forward whatever value to dnsmasq */
+    else if (leasetime < 120)
+        virBufferAsprintf(&leasebuf, ",120");
+    /* DHCP value for lease time is a unsigned four octect integer */
+    else if (leasetime <= UINT32_MAX)
+        virBufferAsprintf(&leasebuf, ",%" PRId64, leasetime);
+    /* TODO: Discuss the use of "deprecated" for ipv6*/
+    /* TODO: Discuss what is the default value that we want as dnsmasq's is 1 hour */
+    /* TODO: Discuss what to do if value exceeds maximum, use default value for now */
+    else {
+        virBufferAsprintf(&leasebuf, "%s", "");
+    }
+
+    result = virBufferContentAndReset(&leasebuf);
+    virBufferFreeAndReset (&leasebuf);
+
+    return result;
+}
 
 int
 networkDnsmasqConfContents(virNetworkObjPtr network,
@@ -1213,6 +1249,7 @@ networkDnsmasqConfContents(virNetworkObjPtr network,
         }
         for (r = 0; r < ipdef->nranges; r++) {
             int thisRange;
+            char *leasestr;
 
             if (!(saddr = virSocketAddrFormat(&ipdef->ranges[r].start)) ||
                 !(eaddr = virSocketAddrFormat(&ipdef->ranges[r].end)))
@@ -1220,12 +1257,22 @@ networkDnsmasqConfContents(virNetworkObjPtr network,
 
             virBufferAsprintf(&configbuf, "dhcp-range=%s,%s",
                               saddr, eaddr);
-            if (VIR_SOCKET_ADDR_IS_FAMILY(&ipdef->address, AF_INET6))
+
+            /* Add ipv6 prefix length parameter if needed */
+            if (ipdef == ipv6def)
                 virBufferAsprintf(&configbuf, ",%d", prefix);
+
+            leasestr = networkDnsmasqConfLeaseValueToString (ipdef->leasetime);
+            if (!leasestr)
+                goto cleanup;
+            virBufferAsprintf(&configbuf, "%s", leasestr);
+
+            /* Add the newline */
             virBufferAddLit(&configbuf, "\n");
 
             VIR_FREE(saddr);
             VIR_FREE(eaddr);
+            VIR_FREE(leasestr);
             thisRange = virSocketAddrGetRange(&ipdef->ranges[r].start,
                                               &ipdef->ranges[r].end,
                                               &ipdef->address,
diff --git a/tests/networkxml2confdata/leasetime-days.conf b/tests/networkxml2confdata/leasetime-days.conf
new file mode 100644
index 000000000..9501e2f8a
--- /dev/null
+++ b/tests/networkxml2confdata/leasetime-days.conf
@@ -0,0 +1,17 @@
+##WARNING:  THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
+##OVERWRITTEN AND LOST.  Changes to this configuration should be made using:
+##    virsh net-edit default
+## or other application using the libvirt API.
+##
+## dnsmasq conf file created by libvirt
+strict-order
+except-interface=lo
+bind-dynamic
+interface=virbr0
+dhcp-range=192.168.122.2,192.168.122.254,86400
+dhcp-no-override
+dhcp-range=2001:db8:ac10:fd01::1:10,2001:db8:ac10:fd01::1:ff,64,86400
+dhcp-lease-max=493
+dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile
+addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts
+enable-ra
diff --git a/tests/networkxml2confdata/leasetime-days.xml b/tests/networkxml2confdata/leasetime-days.xml
new file mode 100644
index 000000000..b990b4d68
--- /dev/null
+++ b/tests/networkxml2confdata/leasetime-days.xml
@@ -0,0 +1,18 @@
+<network>
+  <name>default</name>
+  <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid>
+  <forward dev='eth1' mode='nat'/>
+  <bridge name='virbr0' stp='on' delay='0'/>
+  <ip address='192.168.122.1' netmask='255.255.255.0'>
+    <dhcp>
+      <leasetime unit="days">1</leasetime>
+      <range start='192.168.122.2' end='192.168.122.254'/>
+    </dhcp>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'>
+    <dhcp>
+      <leasetime unit="days">1</leasetime>
+      <range start='2001:db8:ac10:fd01::1:10' end='2001:db8:ac10:fd01::1:ff'/>
+    </dhcp>
+  </ip>
+</network>
diff --git a/tests/networkxml2confdata/leasetime-hours.conf b/tests/networkxml2confdata/leasetime-hours.conf
new file mode 100644
index 000000000..021a769bc
--- /dev/null
+++ b/tests/networkxml2confdata/leasetime-hours.conf
@@ -0,0 +1,17 @@
+##WARNING:  THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
+##OVERWRITTEN AND LOST.  Changes to this configuration should be made using:
+##    virsh net-edit default
+## or other application using the libvirt API.
+##
+## dnsmasq conf file created by libvirt
+strict-order
+except-interface=lo
+bind-dynamic
+interface=virbr0
+dhcp-range=192.168.122.2,192.168.122.254,3600
+dhcp-no-override
+dhcp-range=2001:db8:ac10:fd01::1:10,2001:db8:ac10:fd01::1:ff,64,3600
+dhcp-lease-max=493
+dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile
+addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts
+enable-ra
diff --git a/tests/networkxml2confdata/leasetime-hours.xml b/tests/networkxml2confdata/leasetime-hours.xml
new file mode 100644
index 000000000..3b9609601
--- /dev/null
+++ b/tests/networkxml2confdata/leasetime-hours.xml
@@ -0,0 +1,18 @@
+<network>
+  <name>default</name>
+  <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid>
+  <forward dev='eth1' mode='nat'/>
+  <bridge name='virbr0' stp='on' delay='0'/>
+  <ip address='192.168.122.1' netmask='255.255.255.0'>
+    <dhcp>
+      <leasetime unit="hours">1</leasetime>
+      <range start='192.168.122.2' end='192.168.122.254'/>
+    </dhcp>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'>
+    <dhcp>
+      <leasetime unit="hours">1</leasetime>
+      <range start='2001:db8:ac10:fd01::1:10' end='2001:db8:ac10:fd01::1:ff'/>
+    </dhcp>
+  </ip>
+</network>
diff --git a/tests/networkxml2confdata/leasetime-infinite.conf b/tests/networkxml2confdata/leasetime-infinite.conf
new file mode 100644
index 000000000..cc21135de
--- /dev/null
+++ b/tests/networkxml2confdata/leasetime-infinite.conf
@@ -0,0 +1,17 @@
+##WARNING:  THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
+##OVERWRITTEN AND LOST.  Changes to this configuration should be made using:
+##    virsh net-edit default
+## or other application using the libvirt API.
+##
+## dnsmasq conf file created by libvirt
+strict-order
+except-interface=lo
+bind-dynamic
+interface=virbr0
+dhcp-range=192.168.122.2,192.168.122.254,infinite
+dhcp-no-override
+dhcp-range=2001:db8:ac10:fd01::1:10,2001:db8:ac10:fd01::1:ff,64,infinite
+dhcp-lease-max=493
+dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile
+addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts
+enable-ra
diff --git a/tests/networkxml2confdata/leasetime-infinite.xml b/tests/networkxml2confdata/leasetime-infinite.xml
new file mode 100644
index 000000000..bc8740ee6
--- /dev/null
+++ b/tests/networkxml2confdata/leasetime-infinite.xml
@@ -0,0 +1,18 @@
+<network>
+  <name>default</name>
+  <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid>
+  <forward dev='eth1' mode='nat'/>
+  <bridge name='virbr0' stp='on' delay='0'/>
+  <ip address='192.168.122.1' netmask='255.255.255.0'>
+    <dhcp>
+      <leasetime>-1</leasetime>
+      <range start='192.168.122.2' end='192.168.122.254'/>
+    </dhcp>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'>
+    <dhcp>
+      <leasetime>-1</leasetime>
+      <range start='2001:db8:ac10:fd01::1:10' end='2001:db8:ac10:fd01::1:ff'/>
+    </dhcp>
+  </ip>
+</network>
diff --git a/tests/networkxml2confdata/leasetime-minutes.conf b/tests/networkxml2confdata/leasetime-minutes.conf
new file mode 100644
index 000000000..db688951b
--- /dev/null
+++ b/tests/networkxml2confdata/leasetime-minutes.conf
@@ -0,0 +1,17 @@
+##WARNING:  THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
+##OVERWRITTEN AND LOST.  Changes to this configuration should be made using:
+##    virsh net-edit default
+## or other application using the libvirt API.
+##
+## dnsmasq conf file created by libvirt
+strict-order
+except-interface=lo
+bind-dynamic
+interface=virbr0
+dhcp-range=192.168.122.2,192.168.122.254,300
+dhcp-no-override
+dhcp-range=2001:db8:ac10:fd01::1:10,2001:db8:ac10:fd01::1:ff,64,300
+dhcp-lease-max=493
+dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile
+addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts
+enable-ra
diff --git a/tests/networkxml2confdata/leasetime-minutes.xml b/tests/networkxml2confdata/leasetime-minutes.xml
new file mode 100644
index 000000000..e7a27afe6
--- /dev/null
+++ b/tests/networkxml2confdata/leasetime-minutes.xml
@@ -0,0 +1,18 @@
+<network>
+  <name>default</name>
+  <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid>
+  <forward dev='eth1' mode='nat'/>
+  <bridge name='virbr0' stp='on' delay='0'/>
+  <ip address='192.168.122.1' netmask='255.255.255.0'>
+    <dhcp>
+      <leasetime unit="minutes">5</leasetime>
+      <range start='192.168.122.2' end='192.168.122.254'/>
+    </dhcp>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'>
+    <dhcp>
+      <leasetime unit="minutes">5</leasetime>
+      <range start='2001:db8:ac10:fd01::1:10' end='2001:db8:ac10:fd01::1:ff'/>
+    </dhcp>
+  </ip>
+</network>
diff --git a/tests/networkxml2confdata/leasetime-seconds.conf b/tests/networkxml2confdata/leasetime-seconds.conf
new file mode 100644
index 000000000..635896b29
--- /dev/null
+++ b/tests/networkxml2confdata/leasetime-seconds.conf
@@ -0,0 +1,17 @@
+##WARNING:  THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
+##OVERWRITTEN AND LOST.  Changes to this configuration should be made using:
+##    virsh net-edit default
+## or other application using the libvirt API.
+##
+## dnsmasq conf file created by libvirt
+strict-order
+except-interface=lo
+bind-dynamic
+interface=virbr0
+dhcp-range=192.168.122.2,192.168.122.254,125
+dhcp-no-override
+dhcp-range=2001:db8:ac10:fd01::1:10,2001:db8:ac10:fd01::1:ff,64,125
+dhcp-lease-max=493
+dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile
+addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts
+enable-ra
diff --git a/tests/networkxml2confdata/leasetime-seconds.xml b/tests/networkxml2confdata/leasetime-seconds.xml
new file mode 100644
index 000000000..56b07f8ae
--- /dev/null
+++ b/tests/networkxml2confdata/leasetime-seconds.xml
@@ -0,0 +1,18 @@
+<network>
+  <name>default</name>
+  <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid>
+  <forward dev='eth1' mode='nat'/>
+  <bridge name='virbr0' stp='on' delay='0'/>
+  <ip address='192.168.122.1' netmask='255.255.255.0'>
+    <dhcp>
+      <leasetime unit="seconds">125</leasetime>
+      <range start='192.168.122.2' end='192.168.122.254'/>
+    </dhcp>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'>
+    <dhcp>
+      <leasetime unit="seconds">125</leasetime>
+      <range start='2001:db8:ac10:fd01::1:10' end='2001:db8:ac10:fd01::1:ff'/>
+    </dhcp>
+  </ip>
+</network>
diff --git a/tests/networkxml2confdata/leasetime.conf b/tests/networkxml2confdata/leasetime.conf
new file mode 100644
index 000000000..72a2f6926
--- /dev/null
+++ b/tests/networkxml2confdata/leasetime.conf
@@ -0,0 +1,17 @@
+##WARNING:  THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
+##OVERWRITTEN AND LOST.  Changes to this configuration should be made using:
+##    virsh net-edit default
+## or other application using the libvirt API.
+##
+## dnsmasq conf file created by libvirt
+strict-order
+except-interface=lo
+bind-dynamic
+interface=virbr0
+dhcp-range=192.168.122.2,192.168.122.254,122
+dhcp-no-override
+dhcp-range=2001:db8:ac10:fd01::1:10,2001:db8:ac10:fd01::1:ff,64,121
+dhcp-lease-max=493
+dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile
+addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts
+enable-ra
diff --git a/tests/networkxml2confdata/leasetime.xml b/tests/networkxml2confdata/leasetime.xml
new file mode 100644
index 000000000..fdbb15fc0
--- /dev/null
+++ b/tests/networkxml2confdata/leasetime.xml
@@ -0,0 +1,18 @@
+<network>
+  <name>default</name>
+  <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid>
+  <forward dev='eth1' mode='nat'/>
+  <bridge name='virbr0' stp='on' delay='0'/>
+  <ip address='192.168.122.1' netmask='255.255.255.0'>
+    <dhcp>
+      <leasetime>122</leasetime>
+      <range start='192.168.122.2' end='192.168.122.254'/>
+    </dhcp>
+  </ip>
+  <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'>
+    <dhcp>
+      <leasetime>121</leasetime>
+      <range start='2001:db8:ac10:fd01::1:10' end='2001:db8:ac10:fd01::1:ff'/>
+    </dhcp>
+  </ip>
+</network>
diff --git a/tests/networkxml2conftest.c b/tests/networkxml2conftest.c
index 65a0e3218..223a56f54 100644
--- a/tests/networkxml2conftest.c
+++ b/tests/networkxml2conftest.c
@@ -129,6 +129,13 @@ mymain(void)
     DO_TEST("dhcp6-network", dhcpv6);
     DO_TEST("dhcp6-nat-network", dhcpv6);
     DO_TEST("dhcp6host-routed-network", dhcpv6);
+    DO_TEST("leasetime", dhcpv6);
+    DO_TEST("leasetime-seconds", dhcpv6);
+    DO_TEST("leasetime-hours", dhcpv6);
+    DO_TEST("leasetime-minutes", dhcpv6);
+    DO_TEST("leasetime-hours", dhcpv6);
+    DO_TEST("leasetime-days", dhcpv6);
+    DO_TEST("leasetime-infinite", dhcpv6);
 
     virObjectUnref(dhcpv6);
     virObjectUnref(full);
-- 
2.13.0


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