硬件交互 snmp 使用

# *********************************snmp使用********************************************
# coding=utf-8
"""
filename:snmp_test.py

说明：
使用系统的 snmpwalk 来查询设备信息，需要先安装 snmp
代码 Windows 和 Linux 通用

Windows cmd 调用示例：snmpwalk -v 2c -c public 127.0.0.1 1.3.6.1.2.1.1.1

Windows cmd 下查看某主机（192.168.132.130）信息示例：
snmpwalk -v 2c -c public 192.168.132.130 1.3.6.1.2.1.1.1
"""

# import re
# import os
# import time
# import platform
#
# if 'Windows' == platform.system():
#     hosts = ['localhost']
# else:
#     # 在虚拟机运行时则查看本地
#     hosts = ['127.0.0.1']
#
# def snmpWalk(host, oid):
#     result = os.popen('snmpwalk -v 2c -c public ' + host + ' ' + oid).read().split('\n')[:-1]
#     return result
#
# # ------------------------------------------------------------
# # 获取负载信息
# # ------------------------------------------------------------
#
#
# def getSystem(host):
#     system = ':'.join(snmpWalk(host, 'system')[0].split(':')[3:]).strip()
#     return system
#
# # ------------------------------------------------------------
#
# # ------------------------------------------------------------
# # 获取负载信息
# # ------------------------------------------------------------
#
#
# def getLoad(host, loid):
#     """系统负载"""
#     load_oids = '1.3.6.1.4.1.2021.10.1.3.' + str(loid)
#     return snmpWalk(host, load_oids)[0].split(':')[3]
#
#
# def getLoads(host):
#     load1 = getLoad(host, 1)
#     load10 = getLoad(host, 2)
#     load15 = getLoad(host, 3)
#     return load1, load10, load15
#
# # ------------------------------------------------------------
#
# # ------------------------------------------------------------
# # 获取网卡流量
# # ------------------------------------------------------------
#
#
# def getNetworkDevices(host):
#     """获取网络设备信息"""
#     device_mib = snmpWalk(host, 'RFC1213-MIB::ifDescr')
#     device_list = []
#     for item in device_mib:
#         device_list.append(item.split(':')[3].strip())
#     return device_list
#
#
# def getNetworkData(host, oid):
#     """获取网络流量"""
#     data_mib = snmpWalk(host, oid)
#     data = []
#     for item in data_mib:
#         byte = float(item.split(':')[3].strip())
#         data.append(str(round(byte / 1024, 2)) + ' KB')
#     return data
#
#
# def getNetworkInfo(host):
#     device_list = getNetworkDevices(host)
#     # 流入流量
#     inside = getNetworkData(host, 'IF-MIB::ifInOctets')
#     # 流出流量
#     outside = getNetworkData(host, 'IF-MIB::ifOutOctets')
#     return device_list, inside, outside
#
# # ------------------------------------------------------------
#
#
# # ------------------------------------------------------------
# # 内存使用率
# # ------------------------------------------------------------
#
# def getSwapTotal(host):
#     swap_total = snmpWalk(host, 'UCD-SNMP-MIB::memTotalSwap.0')[0].split(' ')[3]
#     return swap_total
#
#
# def getSwapUsed(host):
#     swap_avail = snmpWalk(host, 'UCD-SNMP-MIB::memAvailSwap.0')[0].split(' ')[3]
#     swap_total = getSwapTotal(host)
#     swap_used = str(round(((float(swap_total) - float(swap_avail)) / float(swap_total)) * 100, 2)) + '%'
#     return swap_used
#
#
# def getMemTotal(host):
#     mem_total = snmpWalk(host, 'UCD-SNMP-MIB::memTotalReal.0')[0].split(' ')[3]
#     return mem_total
#
#
# def getMemUsed(host):
#     mem_total = getMemTotal(host)
#     mem_avail = snmpWalk(host, 'UCD-SNMP-MIB::memAvailReal.0')[0].split(' ')[3]
#     mem_used = str(round(((float(mem_total) - float(mem_avail)) / float(mem_total)) * 100, 2)) + '%'
#     return mem_used
#
#
# def getMemInfo(host):
#     mem_used = getMemUsed(host)
#     swap_used = getSwapUsed(host)
#     return mem_used, swap_used
#
# # ------------------------------------------------------------
#
# def main():
#     for host in hosts:
#
#         print('=' * 10 + host + '=' * 10)
#         start = time.time()
#         print("系统信息")
#         system = getSystem(host)
#         print(system)
#
#         print("系统负载")
#         load1, load10, load15 = getLoads(host)
#         print('load(5min): %s ,load(10min): %s ,load(15min): %s' % (load1, load10, load15))
#
#         print("网卡流量")
#         device_list, inside, outside = getNetworkInfo(host)
#         for i, item in enumerate(device_list):
#             print('%s : RX: %-15s   TX: %s ' % (device_list[i], inside[i], outside[i]))
#
#         mem_used, swap_used = getMemInfo(host)
#         print("内存使用率")
#         print('Mem_Used = %-15s   Swap_Used = %-15s' % (mem_used, swap_used))
#
#         end = time.time()
#         print('run time:', round(end - start, 2), 's')
#
# if __name__ == '__main__':
#     main()