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git.proxmox.com Git - ovs.git/blob - ofproto/ipfix-gen-entities
3 # Copyright (C) 2012 Nicira, Inc.
5 # Copying and distribution of this file, with or without modification,
6 # are permitted in any medium without royalty provided the copyright
7 # notice and this notice are preserved. This file is offered as-is,
8 # without warranty of any kind.
14 import xml
.sax
.handler
16 class IpfixEntityHandler(xml
.sax
.handler
.ContentHandler
):
18 RECORD_FIELDS
= ['name', 'dataType', 'elementId', 'status']
20 # Cf. RFC 5101, Section 6.
32 'boolean': 1, # Not clear.
34 'octetArray': 0, # Not clear.
35 'string': 0, # Not clear.
37 'dateTimeMilliseconds': 8,
38 'dateTimeMicroseconds': 8,
39 'dateTimeNanoseconds': 8,
45 self
.current_field_name
= None
46 self
.current_field_value
= []
47 self
.current_record
= dict()
49 def startDocument(self
):
53 #define IPFIX_ENTITY(ENUM, ID, SIZE, NAME)
57 def endDocument(self
):
59 #undef IPFIX_ENTITY"""
61 def startElement(self
, name
, attrs
):
62 if name
in self
.RECORD_FIELDS
:
63 self
.current_field_name
= name
65 self
.current_field_name
= None
66 self
.current_field_value
= []
69 def camelcase_to_uppercase(s
):
70 return re
.sub('(.)([A-Z]+)', r
'\1_\2', s
).upper()
72 def endElement(self
, name
):
73 if self
.current_field_name
is not None:
74 self
.current_record
[self
.current_field_name
] = ''.join(
75 self
.current_field_value
).strip()
76 elif (name
== 'record'
77 and self
.current_record
.get('status') == 'current'
78 and 'dataType' in self
.current_record
):
80 self
.current_record
['enumName'] = self
.camelcase_to_uppercase(
81 self
.current_record
['name'])
82 self
.current_record
['dataTypeSize'] = self
.DATA_TYPE_SIZE
.get(
83 self
.current_record
['dataType'], 0)
85 print 'IPFIX_ENTITY(%(enumName)s, %(elementId)s, ' \
86 '%(dataTypeSize)i, %(name)s)' % self
.current_record
87 self
.current_record
.clear()
89 def characters(self
, content
):
90 if self
.current_field_name
is not None:
91 self
.current_field_value
.append(content
)
93 def print_ipfix_entity_macros(xml_file
):
94 xml
.sax
.parse(xml_file
, IpfixEntityHandler())
98 %(name)s: IPFIX entity definition generator
99 Prints C macros defining IPFIX entities from the standard IANA file at
100 <http://www.iana.org/assignments/ipfix/ipfix.xml>
101 usage: %(name)s [OPTIONS] XML
102 where XML is the standard IANA XML file defining IPFIX entities
104 The following options are also available:
105 -h, --help display this help message
106 -V, --version display version information\
110 if __name__
== '__main__':
113 options
, args
= getopt
.gnu_getopt(sys
.argv
[1:], 'hV',
115 except getopt
.GetoptError
, geo
:
116 sys
.stderr
.write('%s: %s\n' % (sys
.argv
[0], geo
.msg
))
119 for key
, value
in options
:
120 if key
in ['-h', '--help']:
122 elif key
in ['-V', '--version']:
123 print 'ipfix-gen-entities (Open vSwitch)'
128 sys
.stderr
.write('%s: exactly 1 non-option arguments required '
129 '(use --help for help)\n' % sys
.argv
[0])
132 print_ipfix_entity_macros(args
[0])
134 # except Exception, e:
135 # sys.stderr.write('%s: %s\n' % (sys.argv[0], e))