def create_matrix(scope, show_unused):
"""Creates a matrix for the given scope"""
tree = build_tree(scope)
if scope.version() == 6:
if scope.prefixlen() < 60:
end_net = IP(scope.net().strNormal() + '/64')
matrix = MatrixIPv6(scope, end_net=end_net)
else:
end_net = get_max_leaf(tree)
matrix = MatrixIPv6(scope, end_net=end_net)
elif scope.version() == 4:
if scope.prefixlen() < 24:
end_net = IP(scope.net().strNormal() + '/30')
matrix = MatrixIPv4(scope,
show_unused,
end_net=end_net,
bits_in_matrix=6)
else:
max_leaf = get_max_leaf(tree)
bits_in_matrix = max_leaf.prefixlen() - scope.prefixlen()
matrix = MatrixIPv4(scope,
show_unused,
end_net=max_leaf,
bits_in_matrix=bits_in_matrix)
else:
raise UnknownNetworkTypeException('version: ' + str(scope.version))
# Invalidating the MetaIP cache to get rid of processed data.
MetaIP.invalidateCache()
matrix.build()
return matrix
def matrix_report(request):
"""Subnet matrix view"""
show_unused = request.GET.get('show_unused_addresses', False)
context = {
'navpath': [
('Home', '/'),
('Report', '/report/'),
('Subnet matrix', False)
],
'show_unused': show_unused
}
if 'scope' not in request.GET:
cursor = connection.cursor()
cursor.execute("""
SELECT netaddr, description
FROM prefix
INNER JOIN vlan USING (vlanid)
WHERE nettype='scope'
""".strip())
if cursor.rowcount == 1:
# Id there is only one scope in the database,
# display that scope
scope = IP(cursor.fetchone()[0])
else:
# Else let the user select from a list
scopes = cursor.fetchall()
context['scopes'] = scopes
return render_to_response(
'report/matrix.html',
context,
context_instance=RequestContext(request))
else:
scope = IP(request.GET.get('scope'))
tree = buildTree(scope)
if scope.version() == 6:
end_net = getMaxLeaf(tree)
matrix = MatrixIPv6(scope, end_net=end_net)
elif scope.version() == 4:
if scope.prefixlen() < 24:
end_net = IP(scope.net().strNormal() + '/30')
matrix = MatrixIPv4(scope, show_unused, end_net=end_net,
bits_in_matrix=6)
else:
max_leaf = getMaxLeaf(tree)
bits_in_matrix = max_leaf.prefixlen() - scope.prefixlen()
matrix = MatrixIPv4(
scope,
show_unused,
end_net=max_leaf,
bits_in_matrix=bits_in_matrix)
else:
raise UnknownNetworkTypeException(
'version: ' + str(scope.version))
# Invalidating the MetaIP cache to get rid of processed data.
MetaIP.invalidateCache()
matrix.build()
hide_content_for_colspan = []
if scope.version() == 4:
hide_content_for_colspan = [1, 2, 4]
context.update({
'matrix': matrix,
'sub': matrix.end_net.prefixlen() - matrix.bits_in_matrix,
'ipv4': scope.version() == 4,
'hide_for': hide_content_for_colspan
})
return render_to_response(
'report/matrix.html',
context,
context_instance=RequestContext(request))