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controller_times.py
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import nnpy
import struct
from p4utils.utils.helper import load_topo
from p4utils.utils.sswitch_thrift_API import SimpleSwitchThriftAPI
from scapy.all import Ether, sniff, Packet, BitField, raw
import random
# import cPickle as pkl
import pickle as pkl
import os
# import numpy as np
import math
SCALING_FACTOR = 256
def float_to_binary(float_value):
# 将浮点数打包为字节数据
bytes_data = struct.pack('!e', float_value)
# 将字节数据转换为16位二进制字符串
binary_str = ''.join(format(byte, '08b') for byte in bytes_data)
return binary_str[:16]
def int_to_binary(float_value):
# 将浮点数打包为字节数据
bytes_data = struct.pack('!h', float_value)
# 将字节数据转换为16位二进制字符串
binary_str = ''.join(format(byte, '08b') for byte in bytes_data)
return binary_str[:16]
class CpuHeader(Packet):
name = 'CpuPacket'
fields_desc = [BitField('macAddr',0,48), BitField('ingress_port', 0, 16)]
class L2Controller(object):
def __init__(self,sw_name):
self.topo= load_topo('topology.json')
self.sw_name = sw_name
self.thrift_port = self.topo.get_thrift_port(self.sw_name)
self.cpu_port = self.topo.get_cpu_port_index(self.sw_name)
self.controller = SimpleSwitchThriftAPI(self.thrift_port)
self.init()
def init(self):
pass
self.controller.reset_state()
def run_test(self):
self.controller.table_add('dmac','forward',['10.0.0.1/32'],['1'])
self.controller.table_add('dmac','forward',['10.0.0.2/32'],['2'])
self.controller.table_add('dmac','forward',['11.1.0.0/16'],['1'])
self.controller.table_add('dmac','forward',['11.2.0.0/16'],['2'])
'''
action get_info_action(bit<8> info) {
ig_md.ac_md.info = info;
}
table get_info_table {
key = {
hdr.calc.x[15:15] : exact;
hdr.calc.y[15:15] : exact;
ig_md.ac_md.sign[15:15] : exact;
}
actions = {
get_info_action;
}
size = 8;
}
'''
# self.controller.table_add('get_info_table','get_info_action',['0','0','0'],['0'])
# self.controller.table_add('get_info_table','get_info_action',['0','0','1'],['1'])
# self.controller.table_add('get_info_table','get_info_action',['0','1','0'],['2'])
# self.controller.table_add('get_info_table','get_info_action',['0','1','1'],['3'])
# self.controller.table_add('get_info_table','get_info_action',['1','0','0'],['4'])
# self.controller.table_add('get_info_table','get_info_action',['1','0','1'],['5'])
# self.controller.table_add('get_info_table','get_info_action',['1','1','0'],['6'])
# self.controller.table_add('get_info_table','get_info_action',['1','1','1'],['7'])
# self.controller.table_add('get_info_table','get_info_action',['0'],['0'])
# self.controller.table_add('get_info_table','get_info_action',['1'],['1'])
# self.controller.table_add('get_info_table','get_info_action',['2'],['2'])
# self.controller.table_add('get_info_table','get_info_action',['3'],['3'])
# self.controller.table_add('get_info_table','get_info_action',['4'],['4'])
# self.controller.table_add('get_info_table','get_info_action',['5'],['5'])
# self.controller.table_add('get_info_table','get_info_action',['6'],['6'])
# self.controller.table_add('get_info_table','get_info_action',['7'],['7'])
'''
action get_log_i_action(int<16> log_i) {
ig_md.ac_md.log_i = log_i;
}
table get_log_i_table {
key = {
ig_md.ac_md.frac_x : exact;
}
actions = {
get_log_i_action;
}
size = 32768;
}
'''
# for i in range(1,2**15):
# ## 无穷大，不考虑
# if i&0b0111110000000000 == 0b0111110000000000:
# continue
# print(i,end=' ')
# binary = format(i,'016b')
# print(binary)
# bytes_data = int(binary,2).to_bytes(2,byteorder='big')
# float_value = struct.unpack('!e', bytes_data)[0]
# print(float_value)
# log_i = int(math.log2(float_value)*SCALING_FACTOR)
# print(log_i,end=' ')
# log_i_str = ''.join(format(by,'08b') for by in struct.pack('>h',log_i))
# print(log_i_str)
# print()
# self.controller.table_add('get_log_i_table','get_log_i_action',['0b'+binary],['0b'+log_i_str])
for i in range(1,2**16):
try:
## 无穷大，不考虑
if i&0b0111110000000000 == 0b0111110000000000:
continue
print(i,end=' ')
binary = format(i,'016b')
print(binary)
bytes_data = int(binary,2).to_bytes(2,byteorder='big')
float_value = struct.unpack('!e', bytes_data)[0]
print(float_value)
log_i = int(math.log2(float_value)*SCALING_FACTOR)
print(log_i,end=' ')
log_i_str = ''.join(format(by,'08b') for by in struct.pack('>h',log_i))
print(log_i_str)
print()
self.controller.table_add('get_log_i_table','get_log_i_action',['0b'+binary],['0b'+log_i_str])
except:
print('Table: get_log_i_action, error at',i)
'''
action get_log_j_action(int<16> log_j) {
ig_md.ac_md.log_j = log_j;
}
table get_log_j_table {
key = {
ig_md.ac_md.frac_y : exact;
}
actions = {
get_log_j_action;
}
size = 32768;
}
'''
# for i in range(1,2**15):
# ## 无穷大，不考虑
# if i&0b0111110000000000 == 0b0111110000000000:
# continue
# print(i,end=' ')
# binary = format(i,'016b')
# print(binary)
# bytes_data = int(binary,2).to_bytes(2,byteorder='big')
# float_value = struct.unpack('!e', bytes_data)[0]
# print(float_value)
# log_i = int(math.log2(float_value)*SCALING_FACTOR)
# print(log_i,end=' ')
# log_i_str = ''.join(format(by,'08b') for by in struct.pack('>h',log_i))
# print(log_i_str)
# print()
# self.controller.table_add('get_log_j_table','get_log_j_action',['0b'+binary],['0b'+log_i_str])
for i in range(1,2**16):
try:
## 无穷大，不考虑
if i&0b0111110000000000 == 0b0111110000000000:
continue
print(i,end=' ')
binary = format(i,'016b')
print(binary)
bytes_data = int(binary,2).to_bytes(2,byteorder='big')
float_value = struct.unpack('!e', bytes_data)[0]
print(float_value)
log_i = int(math.log2(float_value)*SCALING_FACTOR)
print(log_i,end=' ')
log_i_str = ''.join(format(by,'08b') for by in struct.pack('>h',log_i))
print(log_i_str)
print()
self.controller.table_add('get_log_j_table','get_log_j_action',['0b'+binary],['0b'+log_i_str])
except:
print('Table: get_log_j_action, error at',i)
'''
action get_abs_z_action(bit<16> abs_z) {
hdr.calc.z = abs_z;
}
table get_abs_z_table {
key = {
ig_md.ac_md.n : exact;
}
actions = {
get_abs_z_action;
}
size = 65536;
}
'''
# for i in range(0,int(15*SCALING_FACTOR)):
# print(i,end=' ')
# binary_str = bin(i)[2:].zfill(16)
# print(binary_str)
# # float_value = struct.unpack('!e', bytes.fromhex(hex(int(binary_str, 2))[2:].zfill(4)))[0]
# # exp_i = math.log2(1-2**float_value)
# # print(float_value)
# exp_i = 2**(i*1.0/SCALING_FACTOR)*1.0
# exp_i_str=float_to_binary(float_value=exp_i)
# print(exp_i,end=' ')
# print(exp_i_str)
# print()
# self.controller.table_add('get_abs_z_table','get_abs_z_action',['0b'+binary_str],['0b'+exp_i_str])
for i in range(-1*int(15*SCALING_FACTOR),int(15*SCALING_FACTOR)):
try:
print(i,end=' ')
# binary_str = bin(i)[2:].zfill(16)
binary_str = ''.join(format(by,'08b') for by in struct.pack('!h',i))
print(binary_str)
# float_value = struct.unpack('!e', bytes.fromhex(hex(int(binary_str, 2))[2:].zfill(4)))[0]
# exp_i = math.log2(1-2**float_value)
# print(float_value)
exp_i = 2**(i*1.0/SCALING_FACTOR)*1.0
# exp_i_str=float_to_binary(float_value=exp_i)
exp_i_str=''.join(format(by,'08b') for by in struct.pack('!e',exp_i))
print(exp_i,end=' ')
print(exp_i_str)
print()
self.controller.table_add('get_abs_z_table','get_abs_z_action',['0b'+binary_str],['0b'+exp_i_str])
except:
print('Table: get_abs_z_table, error at',i)
# self.get_table_configuration()
# self.add_entry_to_tables()
if __name__ == '__main__':
con = L2Controller('s1')
con.run_test()