class NetworkSwitch(db.Model):
id = db.Column(db.Integer, primary_key=True)
swid = db.Column(db.String(50), unique=True)
links = db.relationship('SwitchLink',
primaryjoin=id == SwitchLink.srcswitch_id,
lazy='dynamic')
def __init__(self, swid):
self.swid = swid
def __repr__(self):
return '<NetworkSwitch %r>' % self.swid
# Returns a list of tuples (<neighbor>, <port>, <cost>) where:
# - <neighbor> is a NetworkSwitch instance representing the neighbor
# - <port> is the number of current switch's port that is connected to
# <neighbor>
# - <cost> is the cost of the link for Dijkstra's algorithm
def getneighborlinks(self, returnquery=False):
query = self.links.filter_by(dsthost_id=None)
return query if returnquery else query.all()
def getneighbors(self):
return [(l.dstswitch, l.srcswitch_port, l.cost)
for l in self.getneighborlinks()]
def gethostlinks(self, returnquery=False):
query = self.links.filter_by(dstswitch_id=None)
return query if returnquery else query.all()
def gethosts(self):
return [(l.dsthost, l.srcswitch_port, l.cost)
for l in self.gethostlinks()]
class User(db.Model):
id = db.Column(db.Integer, primary_key=True)
username = db.Column(db.String(50), unique=True)
password = db.Column(db.String(50), unique=False)
status_id = db.Column(db.Integer,
db.ForeignKey('user_status.id'),
default=1)
authorizednetworks = db.relationship('NetworkAccess', lazy='dynamic')
sessions = db.relationship('UserSession', lazy='dynamic')
def __init__(self, username=None, password=None):
self.username = username
self.password = password
def __repr__(self):
return '<User %r>' % (self.username)
# is_authenticated(), is_active(), is_anonymous(), get_id() are required
# for use with flask-login
def is_authenticated(self):
return len(self.sessions.filter_by(endtime=None).all()) > 0
def is_active(self):
return True
def is_anonymous(self):
return False
def get_id(self):
return unicode(self.id)
class UserStatus(db.Model):
id = db.Column(db.Integer, primary_key=True)
description = db.Column(db.String(20), unique=True)
users = db.relationship('User', backref='status', lazy='dynamic')
def __init__(self, description):
self.description = description
def __repr__(self):
return '<UserStatus %r>' % self.description
class NetworkAccess(db.Model):
id = db.Column(db.Integer, primary_key=True)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
virtualnetwork_id = db.Column(db.Integer,
db.ForeignKey('virtual_network.id'))
virtualnetworkhost_id = db.Column(db.Integer,
db.ForeignKey('virtual_network_host.id'))
virtualnetwork = db.relationship('VirtualNetwork', uselist=False)
active = db.Column(db.Boolean)
def __init__(self, user_id, vnetwork_id, vhost_id=None, active=False):
self.user_id = user_id
self.virtualnetwork_id = vnetwork_id
self.virtualnetworkhost_id = vhost_id
self.active = active
class UserSession(db.Model):
id = db.Column(db.Integer, primary_key=True)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
physicalhost_id = db.Column(db.Integer,
db.ForeignKey('physical_network_host.id'))
starttime = db.Column(db.DateTime, default=datetime.utcnow)
endtime = db.Column(db.DateTime)
lastactivity = db.Column(db.DateTime)
user = db.relationship('User', uselist=False)
physicalhost = db.relationship('PhysicalNetworkHost', uselist=False)
virtualhosts = db.relationship('VirtualNetworkHost', lazy='dynamic')
def __init__(self, userid, hostid, start=now(), end=None, lastact=None):
self.user_id = userid
self.physicalhost_id = hostid
self.starttime = start
self.endtime = end
self.lastactivity = lastact
def __repr__(self):
return '<UserSession %r>' % self.id
def is_active(self):
return self.endtime is None
class PhysicalNetworkHost(db.Model):
id = db.Column(db.Integer, primary_key=True)
mac = db.Column(db.String(17), unique=True)
ip = db.Column(db.String(15), unique=True)
user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
user = db.relationship('User', backref='physicalhost', uselist=False)
virtualhosts = db.relationship('VirtualNetworkHost', lazy='dynamic')
'''
switch_id = db.Column(db.Integer, db.ForeignKey('network_switch.id'))
switch_port = db.Column(db.Integer)
switch = db.relationship('NetworkSwitch', uselist=False)
'''
# def __init__(self, mac, ip, switch, port, user=None):
def __init__(self, mac, ip, user=None):
self.mac = mac
self.ip = ip
self.user = user
def __repr__(self):
return '<PhysicalNetworkHost %r>' % self.mac
class VirtualNetwork(db.Model):
id = db.Column(db.Integer, primary_key=True)
vNetID = db.Column(db.String(32), unique=True)
vlan = db.Column(db.Integer, unique=True)
cidr = db.Column(db.String(18))
hosts = db.relationship('VirtualNetworkHost',
backref='virtualnetwork',
lazy='dynamic')
def __init__(self, vNetID, vlan, cidr):
self.vNetID = vNetID
self.vlan = vlan
# TODO: cidr validation (make sure networks don't overlap, etc)
self.cidr = cidr
def __repr__(self):
return ('<VirtualNetwork vNetID: %r, VLAN: %d, CIDR: %r' %
(self.vNetID, self.vlan, self.cidr))
def generateIP(self):
network = IPSet(IPNetwork(self.cidr))
network.remove(min(network))
network.remove(max(network))
hostlist = IPSet([h.ip for h in self.hosts.all()])
available = network - hostlist
return min(available)
'''
for host in hosts.all():
if(ipToInteger(host.ip) > maxIp):
maxIp = ipToInteger(host.ipAddr)
return integerToIp(maxIp+1)
'''
'''
class SwitchLink(db.Model):
__table_args__ = (db.UniqueConstraint('srcswitch_id', 'srcswitch_port'), )
id = db.Column(db.Integer, primary_key=True)
srcswitch_id = db.Column(db.Integer, db.ForeignKey('network_switch.id'))
srcswitch_port = db.Column(db.Integer)
dstswitch_id = db.Column(db.Integer, db.ForeignKey('network_switch.id'))
dsthost_id = db.Column(db.Integer,
db.ForeignKey('physical_network_host.id'))
capacity = db.Column(db.Integer)
cost = db.Column(db.Integer)
dsthost = db.relationship('PhysicalNetworkHost', uselist=False)
dstswitch = db.relationship('NetworkSwitch',
foreign_keys=[dstswitch_id],
uselist=False)
def __init__(self,
src_id,
src_port,
dst_id,
dsttype='switch',
capacity=-1,
cost=1):
if dsttype not in ('switch', 'host'):
raise Exception('Invalid dsttype')
self.srcswitch_id = src_id
self.srcswitch_port = src_port
self.dstswitch_id = dst_id if dsttype == 'switch' else None
self.dsthost_id = dst_id if dsttype == 'host' else None
self.capacity = capacity
self.cost = cost
def __repr__(self):
format = "SwitchLink %r:\n" \
+ "\tsrcswitch_id: %r\n\tsrcswitch_port: %r\n" \
+ "\tdstswitch_id: %r\n\tdsthost_id: %r\n\n"
return format % (self.id, self.srcswitch_id, self.srcswitch_port,
self.dstswitch_id, self.dsthost_id)
class VirtualNetworkHost(db.Model):
id = db.Column(db.Integer, primary_key=True)
mac = db.Column(db.String(17), unique=True)
ip = db.Column(db.String(15), unique=True)
physicalhost_id = db.Column(db.Integer,
db.ForeignKey('physical_network_host.id'))
physicalhost = db.relationship('PhysicalNetworkHost', uselist=False)
usersession_id = db.Column(db.Integer, db.ForeignKey('user_session.id'))
usersession = db.relationship('UserSession', uselist=False)
virtualnetwork_id = db.Column(db.Integer,
db.ForeignKey('virtual_network.id'))
def __init__(self, mac, ip, physicalhost_id, vnetwork_id, session_id):
self.mac = mac
self.ip = ip
self.physicalhost_id = physicalhost_id
self.virtualnetwork_id = vnetwork_id
self.usersession_id = session_id
def __repr__(self):
return '<VirtualNetworkHost %r>' % self.mac
