def regist_device(): #选择第一个未使用的ip，获取alloc的信息作为注册开始信息 tmp = IPrms_IP.where(state='Off').select_head() net_addr = self.get_net_addr(tmp.ip) subnet_id_start = self.get_subnet_id(tmp.ip) seg_length = 2 ** (32-mask) if mask > 16 and mask < 24: seg_length = 256 subnet_id_end = subnet_id_start + (2**(24-mask)) * dev_num - 1 host_id_end = 255 #subnet_num指一个设备所占的最多子网数量 subnet_num = 2 ** (24-mask) else: subnet_num = 1 seg_length = 2 ** (32-mask) x = 256 / seg_length if dev_num % x == 0: subnet_id_end = subnet_id_start + dev_num / x - 1 host_id_end = 255 else: subnet_id_end = subnet_id_start + dev_num / x host_id_end = (dev_num%x) * seg_length sub_mask = self.cal_sub_mask(mask) vlan = vlan_name seg_id = IPrms_Segment.where().count() dev_id = IP_Detail.where(netdevicename=dev_name, type='GW').count() for i in range(subnet_id_start, subnet_id_end+1, 1): for j in range(0, 256*subnet_num, 1): #满足三个条件即注册信息到表：1.主机号为下一个网段号的主机号 2.够分配下一个网段 3.一个设备的分配跨过了正确数目子网号 if j % seg_length == 0 and j + seg_length <= 256 and (i-subnet_id_start) % subnet_num == 0: #当到达最后一个子网，所有设备都注册后，这时检索到的ip将跳过，不再注册到iprms_segment与ip_detail中 if i == subnet_id_end and j >= host_id_end: pass else: dev_id = dev_id + 1 net_seg = '%s.%s.%s/%s' % (net_addr, i, j, mask) gateway_ip = '%s.%s.%s' % (net_addr, i, j + 1) min_value = '%s.%s.%s' % (net_addr, i, j) max_value = '%s.%s.%s' % (net_addr, i+subnet_num-1, j+seg_length-1) '''iprms_segment表注册''' iprms_segment = IPrms_Segment() iprms_segment.segmentname = net_seg iprms_segment.segmenttype = 'GW' iprms_segment.gateway = gateway_ip iprms_segment.subnetmask = sub_mask iprms_segment.netdevicename = dev_name iprms_segment.netdeviceid = dev_id iprms_segment.vlan = vlan_name iprms_segment.min = min_value iprms_segment.max = max_value iprms_segment_list.append(iprms_segment) '''ip_detail表注册''' ip_detail = IP_Detail() ip_detail.address = gateway_ip ip_detail.gateway = gateway_ip ip_detail.subnetmask = sub_mask ip_detail.netdevicename = dev_name ip_detail.netdeviceid = dev_id ip_detail.port = 'VLAN%s' % vlan_name ip_detail.type = 'GW' ip_detail_list.append(ip_detail) seg_id = seg_id + 1 '''iprms_ip表注册''' ip = '%s.%s.%s' % (net_addr, i, j) state = 'Available' segmentid = seg_id #判断是否为网关ip if j % seg_length == 1: state = 'Specific' if i == subnet_id_end and j > host_id_end: #对于一个子网域剩下未分配的ip，系统将把其全部浪费掉，状态由Off转为Unavaliable state = 'Unavailable' segmentid = 0 iprms_ip_list.append([ip, state, segmentid]) print "完成服务器网络资源自动分配"
