bonding: Add support for mac base input interfaces

In a contineous test environement setups where device names
are not persistent accross os, having a unique key like mac
addr as yaml input which does not change across reboots,
dlpar or os install with different linux flavours, also
the legacy interface name still works.

Signed-off-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>

io/net/bonding.py

@@ -49,8 +49,10 @@ def setUp(self):
         '''
         To check and install dependencies for the test
         '''
+        self.localhost = LocalHost()
         detected_distro = distro.detect()
         smm = SoftwareManager()
+        self.host_interfaces = []
         depends = []
         # FIXME: "redhat" as the distro name for RHEL is deprecated
         # on Avocado versions >= 50.0.  This is a temporary compatibility
@@ -73,10 +75,15 @@ def setUp(self):
         self.user = self.params.get("user_name", default="root")
         self.password = self.params.get("peer_password", '*',
                                         default="None")
-        self.host_interfaces = self.params.get("bond_interfaces",
-                                               default="").split(" ")
-        if not self.host_interfaces:
-            self.cancel("user should specify host interfaces")
+        devices = self.params.get("bond_interfaces", default=None)
+        if devices:
+            for device in devices.split(" "):
+                if device in interfaces:
+                    self.host_interfaces.append(device)
+                elif self.localhost.validate_mac_addr(device) and device in self.localhost.get_all_hwaddr():
+                    self.host_interfaces.append(self.localhost.get_interface_by_hwaddr(device).name)
+                else:
+                    self.cancel("user should specify host interfaces")
         self.peer_interfaces = self.params.get("peer_interfaces",
                                                default="").split(" ")
         for self.host_interface in self.host_interfaces:
@@ -90,7 +97,6 @@ def setUp(self):
         self.netmask = self.params.get("netmask", default="")
         self.peer_bond_needed = self.params.get("peer_bond_needed",
                                                 default=False)
-        self.localhost = LocalHost()
         if 'setup' in str(self.name.name):
             for ipaddr, interface in zip(self.ipaddr, self.host_interfaces):
                 networkinterface = NetworkInterface(interface, self.localhost)
@@ -579,4 +585,5 @@ def error_check(self):
             self.fail("Tests failed. Details:\n%s" % "\n".join(self.err))
 
     def tearDown(self):
-        self.session.quit()
+        if self.host_interfaces:
+            self.session.quit()

io/net/bonding.py.data/README.txt

@@ -16,7 +16,7 @@ Note:
 -----------------------------
 Inputs Needed To Run Tests:
 ------------------------------
-bond_interfaces --> Interfaces in the Host machine requird for Bonding
+bond_interfaces --> Interfaces names or mac address space separated in the Host machine requird for Bonding
 Note: example bond_interfaces = "ib0 ib1", Space between the interface names
 peerip --> peer ip address
 peer_interfaces --> This is needed only if a Bond interface is to be created in the Peer machine, space separated names if specifying multiple
@@ -31,5 +31,3 @@ Requirements:
 -----------------------
 1. install netifaces using pip
 command: pip install netifaces
-2. Generate sshkey for your test partner to run the test uninterrupted.(Have a passwordless ssh between the peers)
-3. Make sure IPs are set for interfaces to be used, via configuration file. ifup / ifdown should set the IPs back.