diff options
Diffstat (limited to 'scripts/automation/trex_control_plane/python_lib/dpkt-1.8.6.2/dpkt/asn1.py')
| -rw-r--r-- | scripts/automation/trex_control_plane/python_lib/dpkt-1.8.6.2/dpkt/asn1.py | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/scripts/automation/trex_control_plane/python_lib/dpkt-1.8.6.2/dpkt/asn1.py b/scripts/automation/trex_control_plane/python_lib/dpkt-1.8.6.2/dpkt/asn1.py deleted file mode 100644 index 7acae041..00000000 --- a/scripts/automation/trex_control_plane/python_lib/dpkt-1.8.6.2/dpkt/asn1.py +++ /dev/null @@ -1,121 +0,0 @@ -# $Id: asn1.py 23 2006-11-08 15:45:33Z dugsong $ -# -*- coding: utf-8 -*- -"""Abstract Syntax Notation #1.""" - -import struct -import time -import dpkt - -# Type class -CLASSMASK = 0xc0 -UNIVERSAL = 0x00 -APPLICATION = 0x40 -CONTEXT = 0x80 -PRIVATE = 0xc0 - -# Constructed (vs. primitive) -CONSTRUCTED = 0x20 - -# Universal-class tags -TAGMASK = 0x1f -INTEGER = 2 -BIT_STRING = 3 # arbitrary bit string -OCTET_STRING = 4 # arbitrary octet string -NULL = 5 -OID = 6 # object identifier -SEQUENCE = 16 # ordered collection of types -SET = 17 # unordered collection of types -PRINT_STRING = 19 # printable string -T61_STRING = 20 # T.61 (8-bit) character string -IA5_STRING = 22 # ASCII -UTC_TIME = 23 - - -def utctime(buf): - """Convert ASN.1 UTCTime string to UTC float.""" - yy = int(buf[:2]) - mn = int(buf[2:4]) - dd = int(buf[4:6]) - hh = int(buf[6:8]) - mm = int(buf[8:10]) - try: - ss = int(buf[10:12]) - buf = buf[12:] - except TypeError: - ss = 0 - buf = buf[10:] - if buf[0] == '+': - hh -= int(buf[1:3]) - mm -= int(buf[3:5]) - elif buf[0] == '-': - hh += int(buf[1:3]) - mm += int(buf[3:5]) - return time.mktime((2000 + yy, mn, dd, hh, mm, ss, 0, 0, 0)) - - -def decode(buf): - """Sleazy ASN.1 decoder. - Return list of (id, value) tuples from ASN.1 BER/DER encoded buffer. - """ - msg = [] - while buf: - t = ord(buf[0]) - constructed = t & CONSTRUCTED - tag = t & TAGMASK - l = ord(buf[1]) - c = 0 - if constructed and l == 128: - # XXX - constructed, indefinite length - msg.append((t, decode(buf[2:]))) - elif l >= 128: - c = l & 127 - if c == 1: - l = ord(buf[2]) - elif c == 2: - l = struct.unpack('>H', buf[2:4])[0] - elif c == 3: - l = struct.unpack('>I', buf[1:5])[0] & 0xfff - c = 2 - elif c == 4: - l = struct.unpack('>I', buf[2:6])[0] - else: - # XXX - can be up to 127 bytes, but... - raise dpkt.UnpackError('excessive long-form ASN.1 length %d' % l) - - # Skip type, length - buf = buf[2 + c:] - - # Parse content - if constructed: - msg.append((t, decode(buf))) - elif tag == INTEGER: - if l == 0: - n = 0 - elif l == 1: - n = ord(buf[0]) - elif l == 2: - n = struct.unpack('>H', buf[:2])[0] - elif l == 3: - n = struct.unpack('>I', buf[:4])[0] >> 8 - elif l == 4: - n = struct.unpack('>I', buf[:4])[0] - else: - raise dpkt.UnpackError('excessive integer length > %d bytes' % l) - msg.append((t, n)) - elif tag == UTC_TIME: - msg.append((t, utctime(buf[:l]))) - else: - msg.append((t, buf[:l])) - - # Skip content - buf = buf[l:] - return msg - - -def test_asn1(): - s = '0\x82\x02Q\x02\x01\x0bc\x82\x02J\x04xcn=Douglas J Song 1, ou=Information Technology Division, ou=Faculty and Staff, ou=People, o=University of Michigan, c=US\n\x01\x00\n\x01\x03\x02\x01\x00\x02\x01\x00\x01\x01\x00\x87\x0bobjectclass0\x82\x01\xb0\x04\rmemberOfGroup\x04\x03acl\x04\x02cn\x04\x05title\x04\rpostalAddress\x04\x0ftelephoneNumber\x04\x04mail\x04\x06member\x04\thomePhone\x04\x11homePostalAddress\x04\x0bobjectClass\x04\x0bdescription\x04\x18facsimileTelephoneNumber\x04\x05pager\x04\x03uid\x04\x0cuserPassword\x04\x08joinable\x04\x10associatedDomain\x04\x05owner\x04\x0erfc822ErrorsTo\x04\x08ErrorsTo\x04\x10rfc822RequestsTo\x04\nRequestsTo\x04\tmoderator\x04\nlabeledURL\x04\nonVacation\x04\x0fvacationMessage\x04\x05drink\x04\x0elastModifiedBy\x04\x10lastModifiedTime\x04\rmodifiersname\x04\x0fmodifytimestamp\x04\x0ccreatorsname\x04\x0fcreatetimestamp' - assert (decode(s) == [(48, [(2, 11), (99, [(4, 'cn=Douglas J Song 1, ou=Information Technology Division, ou=Faculty and Staff, ou=People, o=University of Michigan, c=US'), (10, '\x00'), (10, '\x03'), (2, 0), (2, 0), (1, '\x00'), (135, 'objectclass'), (48, [(4, 'memberOfGroup'), (4, 'acl'), (4, 'cn'), (4, 'title'), (4, 'postalAddress'), (4, 'telephoneNumber'), (4, 'mail'), (4, 'member'), (4, 'homePhone'), (4, 'homePostalAddress'), (4, 'objectClass'), (4, 'description'), (4, 'facsimileTelephoneNumber'), (4, 'pager'), (4, 'uid'), (4, 'userPassword'), (4, 'joinable'), (4, 'associatedDomain'), (4, 'owner'), (4, 'rfc822ErrorsTo'), (4, 'ErrorsTo'), (4, 'rfc822RequestsTo'), (4, 'RequestsTo'), (4, 'moderator'), (4, 'labeledURL'), (4, 'onVacation'), (4, 'vacationMessage'), (4, 'drink'), (4, 'lastModifiedBy'), (4, 'lastModifiedTime'), (4, 'modifiersname'), (4, 'modifytimestamp'), (4, 'creatorsname'), (4, 'createtimestamp')])])])]) - -if __name__ == '__main__': - test_asn1() - print 'Tests Successful...'
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