remove simplejson dependency

[plcapi.git] / PLC / Interfaces.py

diff --git a/PLC/Interfaces.py b/PLC/Interfaces.py
index 8e5d4b6..0e6c728 100644 (file)
--- a/PLC/Interfaces.py
+++ b/PLC/Interfaces.py
@@ -18,25 +18,49 @@ from PLC.NetworkTypes import NetworkType, NetworkTypes
 from PLC.NetworkMethods import NetworkMethod, NetworkMethods
 import PLC.Nodes
 
-def valid_ip(ip):
+def valid_ipv4(ip):
     try:
         ip = socket.inet_ntoa(socket.inet_aton(ip))
         return True
     except socket.error:
         return False
 
-def in_same_network(address1, address2, netmask):
+def valid_ipv6(ip):
+    try:
+        ip = socket.inet_ntop(socket.AF_INET6, socket.inet_pton(socket.AF_INET6, ip))
+        return True
+    except socket.error:
+        return False   
+
+def valid_ip(ip):
+    return valid_ipv4(ip) or valid_ipv6(ip)
+
+def in_same_network_ipv4(address1, address2, netmask):
     """
     Returns True if two IPv4 addresses are in the same network. Faults
     if an address is invalid.
     """
-
     address1 = struct.unpack('>L', socket.inet_aton(address1))[0]
     address2 = struct.unpack('>L', socket.inet_aton(address2))[0]
     netmask = struct.unpack('>L', socket.inet_aton(netmask))[0]
 
     return (address1 & netmask) == (address2 & netmask)
 
+def in_same_network_ipv6(address1, address2, netmask):
+    """
+    Returns True if two IPv6 addresses are in the same network. Faults
+    if an address is invalid.
+    """
+    address1 = struct.unpack('>2Q', socket.inet_pton(socket.AF_INET6, address1))[0]
+    address2 = struct.unpack('>2Q', socket.inet_pton(socket.AF_INET6, address2))[0]
+    netmask = struct.unpack('>2Q', socket.inet_pton(socket.AF_INET6, netmask))[0]
+
+    return (address1 & netmask) == (address2 & netmask)
+
+def in_same_network(address1, address2, netmask):
+    return in_same_network_ipv4(address1, address2, netmask) or \
+           in_same_network_ipv6(address1, address2, netmask) 
+
 class Interface(Row):
     """
     Representation of a row in the interfaces table. To use, optionally
@@ -184,26 +208,31 @@ class Interface(Row):
             # DHCP!
 
         elif method == "static":
-            for key in ['gateway', 'dns1']:
-                if key not in self or not self[key]:
-                   if 'is_primary' in self and self['is_primary'] is True:
-                        raise PLCInvalidArgument, "For static method primary network, %s is required" % key
-                else:
+            if self['type'] == 'ipv4':
+                for key in ['gateway', 'dns1']:
+                    if key not in self or not self[key]:
+                        if 'is_primary' in self and self['is_primary'] is True:
+                            raise PLCInvalidArgument, "For static method primary network, %s is required" % key
+                    else:
+                        globals()[key] = self[key]
+                for key in ['ip', 'network', 'broadcast', 'netmask']:
+                    if key not in self or not self[key]:
+                        raise PLCInvalidArgument, "For static method, %s is required" % key
+                    globals()[key] = self[key]
+                if not in_same_network(ip, network, netmask):
+                    raise PLCInvalidArgument, "IP address %s is inconsistent with network %s/%s" % \
+                          (ip, network, netmask)
+                if not in_same_network(broadcast, network, netmask):
+                    raise PLCInvalidArgument, "Broadcast address %s is inconsistent with network %s/%s" % \
+                          (broadcast, network, netmask)
+                if 'gateway' in globals() and not in_same_network(ip, gateway, netmask):
+                    raise PLCInvalidArgument, "Gateway %s is not reachable from %s/%s" % \
+                          (gateway, ip, netmask)
+            elif self['type'] == 'ipv6':
+                for key in ['ip', 'gateway']:
+                    if key not in self or not self[key]:
+                        raise PLCInvalidArgument, "For static ipv6 method, %s is required" % key
                     globals()[key] = self[key]
-            for key in ['ip', 'network', 'broadcast', 'netmask']:
-                if key not in self or not self[key]:
-                    raise PLCInvalidArgument, "For static method, %s is required" % key
-                globals()[key] = self[key]
-            if not in_same_network(ip, network, netmask):
-                raise PLCInvalidArgument, "IP address %s is inconsistent with network %s/%s" % \
-                      (ip, network, netmask)
-            if not in_same_network(broadcast, network, netmask):
-                raise PLCInvalidArgument, "Broadcast address %s is inconsistent with network %s/%s" % \
-                      (broadcast, network, netmask)
-            if 'gateway' in globals() and not in_same_network(ip, gateway, netmask):
-                raise PLCInvalidArgument, "Gateway %s is not reachable from %s/%s" % \
-                      (gateway, ip, netmask)
-
         elif method == "ipmi":
             if 'ip' not in self or not self['ip']:
                 raise PLCInvalidArgument, "For ipmi method, ip is required"