Add support for OEM command for IPv6 address fetch

Prior to IPv6 being pulled into the proper specification,
there were OEM commands to implement it.  Pull in the AMI
OEM version for systems with TSMs present.

Change-Id: I137887fc57a3daa652f1e0a1bd50a806d3e42b13

Author: jjohnson42

bin/pyghmiutil

@@ -72,6 +72,8 @@ def docommand(result, ipmisession):
             print repr(led)
     elif cmmand == 'graphical':
         print ipmisession.get_graphical_console()
+    elif cmmand == 'net':
+        print ipmisession.get_net_configuration()
     elif cmmand == 'raw':
         print ipmisession.raw_command(netfn=int(args[0]),
                                       command=int(args[1]),

pyghmi/ipmi/command.py

@@ -748,6 +748,8 @@ def get_net_configuration(self, channel=None):
         retdata['ipv4_backup_gateway'] = self._fetch_lancfg_param(channel, 14)
         retdata['ipv4_backup_gateway_mac'] = self._fetch_lancfg_param(channel,
                                                                       15)
+        self.oem_init()
+        self._oem.add_extra_net_configuration(retdata)
         return retdata
 
     def get_sensor_data(self):

pyghmi/ipmi/oem/generic.py

@@ -212,3 +212,12 @@ def set_oem_domain_name(self, name):
     def get_graphical_console(self):
         """Get graphical console launcher"""
         return ()
+
+    def add_extra_net_configuration(self, netdata):
+        """Add additional network configuration data
+
+        Given a standard netdata struct, add details as relevant from
+        OEM commands, modifying the passed dictionary
+        :param netdata: Dictionary to store additional network data
+        """
+        return

pyghmi/ipmi/oem/lenovo/handler.py

@@ -15,6 +15,7 @@
 # limitations under the License.
 
 import base64
+import binascii
 import traceback
 import urllib
 
@@ -38,6 +39,8 @@
 
 import pyghmi.util.webclient as wc
 
+import socket
+
 inventory.register_inventory_category(cpu)
 inventory.register_inventory_category(dimm)
 inventory.register_inventory_category(pci)
@@ -521,3 +524,21 @@ def get_graphical_console(self):
         return self._get_ts_remote_console(self.ipmicmd.bmc,
                                            self.ipmicmd.ipmi_session.userid,
                                            self.ipmicmd.ipmi_session.password)
+
+    def add_extra_net_configuration(self, netdata):
+        if self.has_tsm:
+            ipv6_addr = self.ipmicmd.xraw_command(
+                netfn=0x0c, command=0x02,
+                data=(0x01, 0xc5, 0x00, 0x00))["data"][1:]
+            if not ipv6_addr:
+                return
+            ipv6_prefix = ord(self.ipmicmd.xraw_command(
+                netfn=0xc, command=0x02,
+                data=(0x1, 0xc6, 0, 0))['data'][1])
+            if hasattr(socket, 'inet_ntop'):
+                ipv6str = socket.inet_ntop(socket.AF_INET6, ipv6_addr)
+            else:
+                # fall back to a dumber, but more universal formatter
+                ipv6str = binascii.b2a_hex(ipv6_addr)
+                ipv6str = ':'.join([ipv6str[x:x+4] for x in xrange(0, 32, 4)])
+            netdata['ipv6_address'] = '{0}/{1}'.format(ipv6str, ipv6_prefix)