Teach iproute how to dump IP addresses as well.

(cherry picked from commit 45020cfbc19efac343547f4a966875c319cde748)

Change-Id: I38b5182d9110d72758c48da4d0edc7cf0fb84283
diff --git a/net/test/iproute.py b/net/test/iproute.py
index 2c63993..9101479 100644
--- a/net/test/iproute.py
+++ b/net/test/iproute.py
@@ -118,6 +118,7 @@
 # Interface address attributes.
 IFA_ADDRESS = 1
 IFA_LOCAL = 2
+IFA_LABEL = 3
 IFA_CACHEINFO = 6
 
 # Address flags.
@@ -280,7 +281,8 @@
                   "RTA_GATEWAY", "RTA_PREFSRC", "RTA_UID",
                   "NDA_DST"]:
       data = socket.inet_ntop(msg.family, nla_data)
-    elif name in ["FRA_IIFNAME", "FRA_OIFNAME", "IFLA_IFNAME", "IFLA_QDISC"]:
+    elif name in ["FRA_IIFNAME", "FRA_OIFNAME", "IFLA_IFNAME", "IFLA_QDISC",
+                  "IFA_LABEL"]:
       data = nla_data.strip("\x00")
     elif name == "RTA_METRICS":
       data = self._ParseAttributes(-RTA_METRICS, msg.family, None, nla_data)
@@ -424,6 +426,11 @@
     ifinfomsg = IfinfoMsg((0, 0, 0, 0, 0, 0))
     return self._Dump(RTM_GETLINK, ifinfomsg, IfinfoMsg, "")
 
+  def DumpAddresses(self, version):
+    family = self._AddressFamily(version)
+    ifaddrmsg = IfAddrMsg((family, 0, 0, 0, 0))
+    return self._Dump(RTM_GETADDR, ifaddrmsg, IfAddrMsg, "")
+
   def _Address(self, version, command, addr, prefixlen, flags, scope, ifindex):
     """Adds or deletes an IP address."""
     family = self._AddressFamily(version)