--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/host.py	Thu Apr 02 20:19:18 2009 +0300
@@ -0,0 +1,52 @@
+"""
+    Information about one physica host
+"""
+
+import dhcp
+
+class Interface (object) :
+    """
+        A physical interface for a host
+    """
+
+    def __init__ (self, mac_addr, name=None) :
+        """
+            @param name the short name of the interface (e.g. 'lan' or 'wlan'), or None for no suffix
+            @param mac the physical-layer addr.MAC address
+        """
+
+        self.addr = mac_addr
+        self.name = name
+
+class Host (object) :
+    """
+        A host has a single address/name, an owner, and multiple interfaces
+    """
+
+    def __init__ (self, hostname, address, interfaces) :
+        """
+            @param hostname the short hostname, without the domain name component
+            @param address the addr.IP address
+            @param interfaces a list of zero or more Interface objects
+        """
+
+        self.hostname = hostname
+        self.address = address
+        self.interfaces = interfaces
+    
+    def build_dhcp_hosts (self) :
+        """
+            Build and yield a series of dhcp_conf.Host objects for this host.
+
+            If the host does not have any interfaces defined, this doesn't yield anything
+        """
+        
+        # XXX: do we want to ensure that the host names are unique?
+        
+        for iface in self.interfaces :
+            # the DHCP hostname
+            name = "%s%s" % (self.hostname, ('-%s' % (iface.name)) if iface.name else '')
+            
+            # build it
+            yield dhcp.Host(name, iface.addr, self.address)
+