86 lines
1.9 KiB
Python
86 lines
1.9 KiB
Python
'''
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The functions in this file interact with the VPP API to retrieve certain
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interface metadata.
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'''
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from vpp_papi import VPPApiClient
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import os
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import fnmatch
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import logging
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import threading
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class NullHandler(logging.Handler):
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def emit(self, record):
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pass
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logger = logging.getLogger('pyagentx.vppapi')
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logger.addHandler(NullHandler())
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vpp_lock = threading.Lock()
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def vpp_connect():
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global logger
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vpp_json_dir = '/usr/share/vpp/api/'
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# construct a list of all the json api files
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jsonfiles = []
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for root, dirnames, filenames in os.walk(vpp_json_dir):
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for filename in fnmatch.filter(filenames, '*.api.json'):
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jsonfiles.append(os.path.join(root, filename))
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if not jsonfiles:
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logger.error('no json api files found')
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return False
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vpp = VPPApiClient(apifiles=jsonfiles, server_address='/run/vpp/api.sock')
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try:
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vpp.connect('vpp-snmp-agent')
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except:
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return False
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v = vpp.api.show_version()
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logger.info('VPP version is %s' % v.version)
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return vpp
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def get_iface(vpp, ifname):
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global logger
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vpp_lock.acquire()
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iface_list = vpp.api.sw_interface_dump(name_filter=ifname,
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name_filter_valid=True)
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if not iface_list:
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logger.error("Can't get interface %s" % ifname)
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vpp_lock.release()
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return None
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for iface in iface_list:
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if iface.interface_name == ifname:
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vpp_lock.release()
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return iface
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vpp_lock.release()
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return None
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def get_ifaces(vpp):
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global logger
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vpp_lock.acquire()
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ret = {}
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iface_list = vpp.api.sw_interface_dump()
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if not iface_list:
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logger.error("Can't get interface list")
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vpp_lock.release()
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return ret
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for iface in iface_list:
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ret[iface.interface_name] = iface
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vpp_lock.release()
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return ret
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