nexmon – Rev 1
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#!/usr/bin/env python
#
# asn2wrs.py
# ASN.1 to Wireshark dissector compiler
# Copyright 2004 Tomas Kukosa
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, and/or sell copies of the Software, and to permit persons
# to whom the Software is furnished to do so, provided that the above
# copyright notice(s) and this permission notice appear in all copies of
# the Software and that both the above copyright notice(s) and this
# permission notice appear in supporting documentation.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
# OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
# HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
# INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
# FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
# WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#
# Except as contained in this notice, the name of a copyright holder
# shall not be used in advertising or otherwise to promote the sale, use
# or other dealings in this Software without prior written authorization
# of the copyright holder.
"""ASN.1 to Wireshark dissector compiler"""
#
# Compiler from ASN.1 specification to the Wireshark dissector
#
# Based on ASN.1 to Python compiler from Aaron S. Lav's PyZ3950 package licensed under the X Consortium license
# http://www.pobox.com/~asl2/software/PyZ3950/
# (ASN.1 to Python compiler functionality is broken but not removed, it could be revived if necessary)
#
# It requires Dave Beazley's PLY parsing package licensed under the LGPL (tested with version 2.3)
# http://www.dabeaz.com/ply/
#
#
# ITU-T Recommendation X.680 (07/2002),
# Information technology - Abstract Syntax Notation One (ASN.1): Specification of basic notation
#
# ITU-T Recommendation X.681 (07/2002),
# Information technology - Abstract Syntax Notation One (ASN.1): Information object specification
#
# ITU-T Recommendation X.682 (07/2002),
# Information technology - Abstract Syntax Notation One (ASN.1): Constraint specification
#
# ITU-T Recommendation X.683 (07/2002),
# Information technology - Abstract Syntax Notation One (ASN.1): Parameterization of ASN.1 specifications
#
# ITU-T Recommendation X.880 (07/1994),
# Information technology - Remote Operations: Concepts, model and notation
#
import warnings
import re
import sys
import os
import os.path
import time
import getopt
import traceback
import lex
import yacc
if sys.version_info[0] < 3:
from string import maketrans
# OID name -> number conversion table
oid_names = {
'/itu-t' : 0,
'/itu' : 0,
'/ccitt' : 0,
'/itu-r' : 0,
'0/recommendation' : 0,
'0.0/a' : 1,
'0.0/b' : 2,
'0.0/c' : 3,
'0.0/d' : 4,
'0.0/e' : 5,
'0.0/f' : 6,
'0.0/g' : 7,
'0.0/h' : 8,
'0.0/i' : 9,
'0.0/j' : 10,
'0.0/k' : 11,
'0.0/l' : 12,
'0.0/m' : 13,
'0.0/n' : 14,
'0.0/o' : 15,
'0.0/p' : 16,
'0.0/q' : 17,
'0.0/r' : 18,
'0.0/s' : 19,
'0.0/t' : 20,
'0.0/tseries' : 20,
'0.0/u' : 21,
'0.0/v' : 22,
'0.0/w' : 23,
'0.0/x' : 24,
'0.0/y' : 25,
'0.0/z' : 26,
'0/question' : 1,
'0/administration' : 2,
'0/network-operator' : 3,
'0/identified-organization' : 4,
'0/r-recommendation' : 5,
'0/data' : 9,
'/iso' : 1,
'1/standard' : 0,
'1/registration-authority' : 1,
'1/member-body' : 2,
'1/identified-organization' : 3,
'/joint-iso-itu-t' : 2,
'/joint-iso-ccitt' : 2,
'2/presentation' : 0,
'2/asn1' : 1,
'2/association-control' : 2,
'2/reliable-transfer' : 3,
'2/remote-operations' : 4,
'2/ds' : 5,
'2/directory' : 5,
'2/mhs' : 6,
'2/mhs-motis' : 6,
'2/ccr' : 7,
'2/oda' : 8,
'2/ms' : 9,
'2/osi-management' : 9,
'2/transaction-processing' : 10,
'2/dor' : 11,
'2/distinguished-object-reference' : 11,
'2/reference-data-transfe' : 12,
'2/network-layer' : 13,
'2/network-layer-management' : 13,
'2/transport-layer' : 14,
'2/transport-layer-management' : 14,
'2/datalink-layer' : 15,
'2/datalink-layer-managemen' : 15,
'2/datalink-layer-management-information' : 15,
'2/country' : 16,
'2/registration-procedures' : 17,
'2/registration-procedure' : 17,
'2/physical-layer' : 18,
'2/physical-layer-management' : 18,
'2/mheg' : 19,
'2/genericULS' : 20,
'2/generic-upper-layers-security' : 20,
'2/guls' : 20,
'2/transport-layer-security-protocol' : 21,
'2/network-layer-security-protocol' : 22,
'2/international-organizations' : 23,
'2/internationalRA' : 23,
'2/sios' : 24,
'2/uuid' : 25,
'2/odp' : 26,
'2/upu' : 40,
}
ITEM_FIELD_NAME = '_item'
UNTAG_TYPE_NAME = '_untag'
def asn2c(id):
return id.replace('-', '_').replace('.', '_').replace('&', '_')
input_file = None
g_conform = None
lexer = None
in_oid = False
class LexError(Exception):
def __init__(self, tok, filename=None):
self.tok = tok
self.filename = filename
self.msg = "Unexpected character %r" % (self.tok.value[0])
Exception.__init__(self, self.msg)
def __repr__(self):
return "%s:%d: %s" % (self.filename, self.tok.lineno, self.msg)
__str__ = __repr__
class ParseError(Exception):
def __init__(self, tok, filename=None):
self.tok = tok
self.filename = filename
self.msg = "Unexpected token %s(%r)" % (self.tok.type, self.tok.value)
Exception.__init__(self, self.msg)
def __repr__(self):
return "%s:%d: %s" % (self.filename, self.tok.lineno, self.msg)
__str__ = __repr__
class DuplicateError(Exception):
def __init__(self, type, ident):
self.type = type
self.ident = ident
self.msg = "Duplicate %s for %s" % (self.type, self.ident)
Exception.__init__(self, self.msg)
def __repr__(self):
return self.msg
__str__ = __repr__
class CompError(Exception):
def __init__(self, msg):
self.msg = msg
Exception.__init__(self, self.msg)
def __repr__(self):
return self.msg
__str__ = __repr__
states = (
('braceignore','exclusive'),
)
precedence = (
('left', 'UNION', 'BAR'),
('left', 'INTERSECTION', 'CIRCUMFLEX'),
)
# 11 ASN.1 lexical items
static_tokens = {
r'::=' : 'ASSIGNMENT', # 11.16 Assignment lexical item
r'\.\.' : 'RANGE', # 11.17 Range separator
r'\.\.\.' : 'ELLIPSIS', # 11.18 Ellipsis
r'\[\[' : 'LVERBRACK', # 11.19 Left version brackets
r'\]\]' : 'RVERBRACK', # 11.20 Right version brackets
# 11.26 Single character lexical items
r'\{' : 'LBRACE',
r'\}' : 'RBRACE',
r'<' : 'LT',
#r'>' : 'GT',
r',' : 'COMMA',
r'\.' : 'DOT',
r'\(' : 'LPAREN',
r'\)' : 'RPAREN',
r'\[' : 'LBRACK',
r'\]' : 'RBRACK',
r'-' : 'MINUS',
r':' : 'COLON',
#r'=' : 'EQ',
#r'"' : 'QUOTATION',
#r"'" : 'APOSTROPHE',
r';' : 'SEMICOLON',
r'@' : 'AT',
r'\!' : 'EXCLAMATION',
r'\^' : 'CIRCUMFLEX',
r'\&' : 'AMPERSAND',
r'\|' : 'BAR'
}
# 11.27 Reserved words
# all keys in reserved_words must start w/ upper case
reserved_words = {
'ABSENT' : 'ABSENT',
'ABSTRACT-SYNTAX' : 'ABSTRACT_SYNTAX',
'ALL' : 'ALL',
'APPLICATION' : 'APPLICATION',
'AUTOMATIC' : 'AUTOMATIC',
'BEGIN' : 'BEGIN',
'BIT' : 'BIT',
'BOOLEAN' : 'BOOLEAN',
'BY' : 'BY',
'CHARACTER' : 'CHARACTER',
'CHOICE' : 'CHOICE',
'CLASS' : 'CLASS',
'COMPONENT' : 'COMPONENT',
'COMPONENTS' : 'COMPONENTS',
'CONSTRAINED' : 'CONSTRAINED',
'CONTAINING' : 'CONTAINING',
'DEFAULT' : 'DEFAULT',
'DEFINITIONS' : 'DEFINITIONS',
'EMBEDDED' : 'EMBEDDED',
# 'ENCODED' : 'ENCODED',
'END' : 'END',
'ENUMERATED' : 'ENUMERATED',
# 'EXCEPT' : 'EXCEPT',
'EXPLICIT' : 'EXPLICIT',
'EXPORTS' : 'EXPORTS',
# 'EXTENSIBILITY' : 'EXTENSIBILITY',
'EXTERNAL' : 'EXTERNAL',
'FALSE' : 'FALSE',
'FROM' : 'FROM',
'GeneralizedTime' : 'GeneralizedTime',
'IDENTIFIER' : 'IDENTIFIER',
'IMPLICIT' : 'IMPLICIT',
# 'IMPLIED' : 'IMPLIED',
'IMPORTS' : 'IMPORTS',
'INCLUDES' : 'INCLUDES',
'INSTANCE' : 'INSTANCE',
'INTEGER' : 'INTEGER',
'INTERSECTION' : 'INTERSECTION',
'MAX' : 'MAX',
'MIN' : 'MIN',
'MINUS-INFINITY' : 'MINUS_INFINITY',
'NULL' : 'NULL',
'OBJECT' : 'OBJECT',
'ObjectDescriptor' : 'ObjectDescriptor',
'OCTET' : 'OCTET',
'OF' : 'OF',
'OPTIONAL' : 'OPTIONAL',
'PATTERN' : 'PATTERN',
'PDV' : 'PDV',
'PLUS-INFINITY' : 'PLUS_INFINITY',
'PRESENT' : 'PRESENT',
'PRIVATE' : 'PRIVATE',
'REAL' : 'REAL',
'RELATIVE-OID' : 'RELATIVE_OID',
'SEQUENCE' : 'SEQUENCE',
'SET' : 'SET',
'SIZE' : 'SIZE',
'STRING' : 'STRING',
'SYNTAX' : 'SYNTAX',
'TAGS' : 'TAGS',
'TRUE' : 'TRUE',
'TYPE-IDENTIFIER' : 'TYPE_IDENTIFIER',
'UNION' : 'UNION',
'UNIQUE' : 'UNIQUE',
'UNIVERSAL' : 'UNIVERSAL',
'UTCTime' : 'UTCTime',
'WITH' : 'WITH',
# X.208 obsolete but still used
'ANY' : 'ANY',
'DEFINED' : 'DEFINED',
}
for k in list(static_tokens.keys()):
if static_tokens [k] == None:
static_tokens [k] = k
StringTypes = ['Numeric', 'Printable', 'IA5', 'BMP', 'Universal', 'UTF8',
'Teletex', 'T61', 'Videotex', 'Graphic', 'ISO646', 'Visible',
'General']
for s in StringTypes:
reserved_words[s + 'String'] = s + 'String'
tokens = list(static_tokens.values()) \
+ list(reserved_words.values()) \
+ ['BSTRING', 'HSTRING', 'QSTRING',
'UCASE_IDENT', 'LCASE_IDENT', 'LCASE_IDENT_ASSIGNED', 'CLASS_IDENT',
'REAL_NUMBER', 'NUMBER', 'PYQUOTE']
cur_mod = __import__ (__name__) # XXX blech!
for (k, v) in list(static_tokens.items ()):
cur_mod.__dict__['t_' + v] = k
# 11.10 Binary strings
def t_BSTRING (t):
r"'[01]*'B"
return t
# 11.12 Hexadecimal strings
def t_HSTRING (t):
r"'[0-9A-Fa-f]*'H"
return t
def t_QSTRING (t):
r'"([^"]|"")*"'
return t
def t_UCASE_IDENT (t):
r"[A-Z](-[a-zA-Z0-9]|[a-zA-Z0-9])*" # can't end w/ '-'
if (is_class_ident(t.value)): t.type = 'CLASS_IDENT'
if (is_class_syntax(t.value)): t.type = t.value
t.type = reserved_words.get(t.value, t.type)
return t
lcase_ident_assigned = {}
def t_LCASE_IDENT (t):
r"[a-z](-[a-zA-Z0-9]|[a-zA-Z0-9])*" # can't end w/ '-'
if (not in_oid and (t.value in lcase_ident_assigned)): t.type = 'LCASE_IDENT_ASSIGNED'
return t
# 11.9 Real numbers
def t_REAL_NUMBER (t):
r"[0-9]+\.[0-9]*(?!\.)"
return t
# 11.8 Numbers
def t_NUMBER (t):
r"0|([1-9][0-9]*)"
return t
# 11.6 Comments
pyquote_str = 'PYQUOTE'
def t_COMMENT(t):
r"--(-[^\-\n]|[^\-\n])*(--|\n|-\n|$|-$)"
if (t.value.find("\n") >= 0) : t.lexer.lineno += 1
if t.value[2:2+len (pyquote_str)] == pyquote_str:
t.value = t.value[2+len(pyquote_str):]
t.value = t.value.lstrip ()
t.type = pyquote_str
return t
return None
t_ignore = " \t\r"
def t_NEWLINE(t):
r'\n+'
t.lexer.lineno += t.value.count("\n")
def t_error(t):
global input_file
raise LexError(t, input_file)
# state 'braceignore'
def t_braceignore_lbrace(t):
r'\{'
t.lexer.level +=1
def t_braceignore_rbrace(t):
r'\}'
t.lexer.level -=1
# If closing brace, return token
if t.lexer.level == 0:
t.type = 'RBRACE'
return t
def t_braceignore_QSTRING (t):
r'"([^"]|"")*"'
t.lexer.lineno += t.value.count("\n")
def t_braceignore_COMMENT(t):
r"--(-[^\-\n]|[^\-\n])*(--|\n|-\n|$|-$)"
if (t.value.find("\n") >= 0) : t.lexer.lineno += 1
def t_braceignore_nonspace(t):
r'[^\s\{\}\"-]+|-(?!-)'
t_braceignore_ignore = " \t\r"
def t_braceignore_NEWLINE(t):
r'\n+'
t.lexer.lineno += t.value.count("\n")
def t_braceignore_error(t):
t.lexer.skip(1)
class Ctx:
def __init__ (self, defined_dict, indent = 0):
self.tags_def = 'EXPLICIT' # default = explicit
self.indent_lev = 0
self.assignments = {}
self.dependencies = {}
self.pyquotes = []
self.defined_dict = defined_dict
self.name_ctr = 0
def spaces (self):
return " " * (4 * self.indent_lev)
def indent (self):
self.indent_lev += 1
def outdent (self):
self.indent_lev -= 1
assert (self.indent_lev >= 0)
def register_assignment (self, ident, val, dependencies):
if ident in self.assignments:
raise DuplicateError("assignment", ident)
if ident in self.defined_dict:
raise Exception("cross-module duplicates for %s" % ident)
self.defined_dict [ident] = 1
self.assignments[ident] = val
self.dependencies [ident] = dependencies
return ""
# return "#%s depends on %s" % (ident, str (dependencies))
def register_pyquote (self, val):
self.pyquotes.append (val)
return ""
def output_assignments (self):
already_output = {}
text_list = []
assign_keys = list(self.assignments.keys())
to_output_count = len (assign_keys)
while True:
any_output = 0
for (ident, val) in list(self.assignments.items ()):
if ident in already_output:
continue
ok = 1
for d in self.dependencies [ident]:
if ((d not in already_output) and
(d in assign_keys)):
ok = 0
if ok:
text_list.append ("%s=%s" % (ident,
self.assignments [ident]))
already_output [ident] = 1
any_output = 1
to_output_count -= 1
assert (to_output_count >= 0)
if not any_output:
if to_output_count == 0:
break
# OK, we detected a cycle
cycle_list = []
for ident in list(self.assignments.keys ()):
if ident not in already_output:
depend_list = [d for d in self.dependencies[ident] if d in assign_keys]
cycle_list.append ("%s(%s)" % (ident, ",".join (depend_list)))
text_list.append ("# Cycle XXX " + ",".join (cycle_list))
for (ident, val) in list(self.assignments.items ()):
if ident not in already_output:
text_list.append ("%s=%s" % (ident, self.assignments [ident]))
break
return "\n".join (text_list)
def output_pyquotes (self):
return "\n".join (self.pyquotes)
def make_new_name (self):
self.name_ctr += 1
return "_compiler_generated_name_%d" % (self.name_ctr,)
#--- Flags for EXPORT, USER_DEFINED, NO_EMIT, MAKE_ENUM -------------------------------
EF_TYPE = 0x0001
EF_VALS = 0x0002
EF_ENUM = 0x0004
EF_WS_DLL = 0x0010 # exported from shared library
EF_EXTERN = 0x0020
EF_NO_PROT = 0x0040
EF_NO_TYPE = 0x0080
EF_UCASE = 0x0100
EF_TABLE = 0x0400
EF_DEFINE = 0x0800
EF_MODULE = 0x1000
#--- common dependency computation ---
# Input : list of items
# dictionary with lists of dependency
#
#
# Output : list of two outputs:
# [0] list of items in dependency
# [1] list of cycle dependency cycles
def dependency_compute(items, dependency, map_fn = lambda t: t, ignore_fn = lambda t: False):
item_ord = []
item_cyc = []
x = {} # already emitted
#print '# Dependency computation'
for t in items:
if map_fn(t) in x:
#print 'Continue: %s : %s' % (t, (map_fn(t))
continue
stack = [t]
stackx = {t : dependency.get(t, [])[:]}
#print 'Push: %s : %s' % (t, str(stackx[t]))
while stack:
if stackx[stack[-1]]: # has dependencies
d = stackx[stack[-1]].pop(0)
if map_fn(d) in x or ignore_fn(d):
continue
if d in stackx: # cyclic dependency
c = stack[:]
c.reverse()
c = [d] + c[0:c.index(d)+1]
c.reverse()
item_cyc.append(c)
#print 'Cyclic: %s ' % (' -> '.join(c))
continue
stack.append(d)
stackx[d] = dependency.get(d, [])[:]
#print 'Push: %s : %s' % (d, str(stackx[d]))
else:
#print 'Pop: %s' % (stack[-1])
del stackx[stack[-1]]
e = map_fn(stack.pop())
if e in x:
continue
#print 'Add: %s' % (e)
item_ord.append(e)
x[e] = True
return (item_ord, item_cyc)
# Given a filename, return a relative path from the current directory
def relpath(filename):
return os.path.relpath(filename)
# Given a filename, return a relative path from epan/dissectors
def rel_dissector_path(filename):
path_parts = os.path.abspath(filename).split(os.sep)
while (len(path_parts) > 3 and path_parts[0] != 'asn1'):
path_parts.pop(0)
path_parts.insert(0, '.')
return '/'.join(path_parts)
#--- EthCtx -------------------------------------------------------------------
class EthCtx:
def __init__(self, conform, output, indent = 0):
self.conform = conform
self.output = output
self.conform.ectx = self
self.output.ectx = self
self.encoding = 'per'
self.aligned = False
self.default_oid_variant = ''
self.default_opentype_variant = ''
self.default_containing_variant = '_pdu_new'
self.default_embedded_pdv_cb = None
self.default_external_type_cb = None
self.remove_prefix = None
self.srcdir = None
self.emitted_pdu = {}
self.module = {}
self.module_ord = []
self.all_type_attr = {}
self.all_tags = {}
self.all_vals = {}
def encp(self): # encoding protocol
encp = self.encoding
return encp
# Encoding
def Per(self): return self.encoding == 'per'
def Ber(self): return self.encoding == 'ber'
def Aligned(self): return self.aligned
def Unaligned(self): return not self.aligned
def NeedTags(self): return self.tag_opt or self.Ber()
def NAPI(self): return False # disable planned features
def Module(self): # current module name
return self.modules[-1][0]
def groups(self):
return self.group_by_prot or (self.conform.last_group > 0)
def dbg(self, d):
if (self.dbgopt.find(d) >= 0):
return True
else:
return False
def value_max(self, a, b):
if (a == 'MAX') or (b == 'MAX'): return 'MAX';
if a == 'MIN': return b;
if b == 'MIN': return a;
try:
if (int(a) > int(b)):
return a
else:
return b
except (ValueError, TypeError):
pass
return "MAX((%s),(%s))" % (a, b)
def value_min(self, a, b):
if (a == 'MIN') or (b == 'MIN'): return 'MIN';
if a == 'MAX': return b;
if b == 'MAX': return a;
try:
if (int(a) < int(b)):
return a
else:
return b
except (ValueError, TypeError):
pass
return "MIN((%s),(%s))" % (a, b)
def value_get_eth(self, val):
if isinstance(val, Value):
return val.to_str(self)
ethname = val
if val in self.value:
ethname = self.value[val]['ethname']
return ethname
def value_get_val(self, nm):
val = asn2c(nm)
if nm in self.value:
if self.value[nm]['import']:
v = self.get_val_from_all(nm, self.value[nm]['import'])
if v is None:
msg = 'Need value of imported value identifier %s from %s (%s)' % (nm, self.value[nm]['import'], self.value[nm]['proto'])
warnings.warn_explicit(msg, UserWarning, '', 0)
else:
val = v
else:
val = self.value[nm]['value']
if isinstance (val, Value):
val = val.to_str(self)
else:
msg = 'Need value of unknown value identifier %s' % (nm)
warnings.warn_explicit(msg, UserWarning, '', 0)
return val
def eth_get_type_attr(self, type):
#print "eth_get_type_attr(%s)" % (type)
types = [type]
while (not self.type[type]['import']):
val = self.type[type]['val']
#print val
ttype = type
while (val.type == 'TaggedType'):
val = val.val
ttype += '/' + UNTAG_TYPE_NAME
if (val.type != 'Type_Ref'):
if (type != ttype):
types.append(ttype)
break
type = val.val
types.append(type)
attr = {}
#print " ", types
while len(types):
t = types.pop()
if (self.type[t]['import']):
attr.update(self.type[t]['attr'])
attr.update(self.eth_get_type_attr_from_all(t, self.type[t]['import']))
elif (self.type[t]['val'].type == 'SelectionType'):
val = self.type[t]['val']
(ftype, display) = val.eth_ftype(self)
attr.update({ 'TYPE' : ftype, 'DISPLAY' : display,
'STRINGS' : val.eth_strings(), 'BITMASK' : '0' });
else:
attr.update(self.type[t]['attr'])
attr.update(self.eth_type[self.type[t]['ethname']]['attr'])
#print " ", attr
return attr
def eth_get_type_attr_from_all(self, type, module):
attr = {}
if module in self.all_type_attr and type in self.all_type_attr[module]:
attr = self.all_type_attr[module][type]
return attr
def get_ttag_from_all(self, type, module):
ttag = None
if module in self.all_tags and type in self.all_tags[module]:
ttag = self.all_tags[module][type]
return ttag
def get_val_from_all(self, nm, module):
val = None
if module in self.all_vals and nm in self.all_vals[module]:
val = self.all_vals[module][nm]
return val
def get_obj_repr(self, ident, flds=[], not_flds=[]):
def set_type_fn(cls, field, fnfield):
obj[fnfield + '_fn'] = 'NULL'
obj[fnfield + '_pdu'] = 'NULL'
if field in val and isinstance(val[field], Type_Ref):
p = val[field].eth_type_default_pars(self, '')
obj[fnfield + '_fn'] = p['TYPE_REF_FN']
obj[fnfield + '_fn'] = obj[fnfield + '_fn'] % p # one iteration
if (self.conform.check_item('PDU', cls + '.' + field)):
obj[fnfield + '_pdu'] = 'dissect_' + self.field[val[field].val]['ethname']
return
# end of get_type_fn()
obj = { '_name' : ident, '_ident' : asn2c(ident)}
obj['_class'] = self.oassign[ident].cls
obj['_module'] = self.oassign[ident].module
val = self.oassign[ident].val
for f in flds:
if f not in val:
return None
for f in not_flds:
if f in val:
return None
for f in list(val.keys()):
if isinstance(val[f], Node):
obj[f] = val[f].fld_obj_repr(self)
else:
obj[f] = str(val[f])
if (obj['_class'] == 'TYPE-IDENTIFIER') or (obj['_class'] == 'ABSTRACT-SYNTAX'):
set_type_fn(obj['_class'], '&Type', '_type')
if (obj['_class'] == 'OPERATION'):
set_type_fn(obj['_class'], '&ArgumentType', '_argument')
set_type_fn(obj['_class'], '&ResultType', '_result')
if (obj['_class'] == 'ERROR'):
set_type_fn(obj['_class'], '&ParameterType', '_parameter')
return obj
#--- eth_reg_module -----------------------------------------------------------
def eth_reg_module(self, module):
#print "eth_reg_module(module='%s')" % (module)
name = module.get_name()
self.modules.append([name, module.get_proto(self)])
if name in self.module:
raise DuplicateError("module", name)
self.module[name] = []
self.module_ord.append(name)
#--- eth_module_dep_add ------------------------------------------------------------
def eth_module_dep_add(self, module, dep):
self.module[module].append(dep)
#--- eth_exports ------------------------------------------------------------
def eth_exports(self, exports):
self.exports_all = False
if ((len(exports) == 1) and (exports[0] == 'ALL')):
self.exports_all = True
return
for e in (exports):
if isinstance(e, Type_Ref):
self.exports.append(e.val)
elif isinstance(e, Class_Ref):
self.cexports.append(e.val)
else:
self.vexports.append(e)
#--- eth_reg_assign ---------------------------------------------------------
def eth_reg_assign(self, ident, val, virt=False):
#print "eth_reg_assign(ident='%s')" % (ident)
if ident in self.assign:
raise DuplicateError("assignment", ident)
self.assign[ident] = { 'val' : val , 'virt' : virt }
self.assign_ord.append(ident)
if (self.exports_all):
self.exports.append(ident)
#--- eth_reg_vassign --------------------------------------------------------
def eth_reg_vassign(self, vassign):
ident = vassign.ident
#print "eth_reg_vassign(ident='%s')" % (ident)
if ident in self.vassign:
raise DuplicateError("value assignment", ident)
self.vassign[ident] = vassign
self.vassign_ord.append(ident)
if (self.exports_all):
self.vexports.append(ident)
#--- eth_reg_oassign --------------------------------------------------------
def eth_reg_oassign(self, oassign):
ident = oassign.ident
#print "eth_reg_oassign(ident='%s')" % (ident)
if ident in self.oassign:
if self.oassign[ident] == oassign:
return # OK - already defined
else:
raise DuplicateError("information object assignment", ident)
self.oassign[ident] = oassign
self.oassign_ord.append(ident)
self.oassign_cls.setdefault(oassign.cls, []).append(ident)
#--- eth_import_type --------------------------------------------------------
def eth_import_type(self, ident, mod, proto):
#print "eth_import_type(ident='%s', mod='%s', prot='%s')" % (ident, mod, proto)
if ident in self.type:
#print "already defined '%s' import=%s, module=%s" % (ident, str(self.type[ident]['import']), self.type[ident].get('module', '-'))
if not self.type[ident]['import'] and (self.type[ident]['module'] == mod) :
return # OK - already defined
elif self.type[ident]['import'] and (self.type[ident]['import'] == mod) :
return # OK - already imported
else:
raise DuplicateError("type", ident)
self.type[ident] = {'import' : mod, 'proto' : proto,
'ethname' : '' }
self.type[ident]['attr'] = { 'TYPE' : 'FT_NONE', 'DISPLAY' : 'BASE_NONE',
'STRINGS' : 'NULL', 'BITMASK' : '0' }
mident = "$%s$%s" % (mod, ident)
if (self.conform.check_item('TYPE_ATTR', mident)):
self.type[ident]['attr'].update(self.conform.use_item('TYPE_ATTR', mident))
else:
self.type[ident]['attr'].update(self.conform.use_item('TYPE_ATTR', ident))
if (self.conform.check_item('IMPORT_TAG', mident)):
self.conform.copy_item('IMPORT_TAG', ident, mident)
self.type_imp.append(ident)
#--- dummy_import_type --------------------------------------------------------
def dummy_import_type(self, ident):
# dummy imported
if ident in self.type:
raise Exception("Try to dummy import for existing type :%s" % ident)
ethtype = asn2c(ident)
self.type[ident] = {'import' : 'xxx', 'proto' : 'xxx',
'ethname' : ethtype }
self.type[ident]['attr'] = { 'TYPE' : 'FT_NONE', 'DISPLAY' : 'BASE_NONE',
'STRINGS' : 'NULL', 'BITMASK' : '0' }
self.eth_type[ethtype] = { 'import' : 'xxx', 'proto' : 'xxx' , 'attr' : {}, 'ref' : []}
print("Dummy imported: %s (%s)" % (ident, ethtype))
return ethtype
#--- eth_import_class --------------------------------------------------------
def eth_import_class(self, ident, mod, proto):
#print "eth_import_class(ident='%s', mod='%s', prot='%s')" % (ident, mod, proto)
if ident in self.objectclass:
#print "already defined import=%s, module=%s" % (str(self.objectclass[ident]['import']), self.objectclass[ident]['module'])
if not self.objectclass[ident]['import'] and (self.objectclass[ident]['module'] == mod) :
return # OK - already defined
elif self.objectclass[ident]['import'] and (self.objectclass[ident]['import'] == mod) :
return # OK - already imported
else:
raise DuplicateError("object class", ident)
self.objectclass[ident] = {'import' : mod, 'proto' : proto,
'ethname' : '' }
self.objectclass_imp.append(ident)
#--- eth_import_value -------------------------------------------------------
def eth_import_value(self, ident, mod, proto):
#print "eth_import_value(ident='%s', mod='%s', prot='%s')" % (ident, mod, prot)
if ident in self.value:
#print "already defined import=%s, module=%s" % (str(self.value[ident]['import']), self.value[ident]['module'])
if not self.value[ident]['import'] and (self.value[ident]['module'] == mod) :
return # OK - already defined
elif self.value[ident]['import'] and (self.value[ident]['import'] == mod) :
return # OK - already imported
else:
raise DuplicateError("value", ident)
self.value[ident] = {'import' : mod, 'proto' : proto,
'ethname' : ''}
self.value_imp.append(ident)
#--- eth_sel_req ------------------------------------------------------------
def eth_sel_req(self, typ, sel):
key = typ + '.' + sel
if key not in self.sel_req:
self.sel_req[key] = { 'typ' : typ , 'sel' : sel}
self.sel_req_ord.append(key)
return key
#--- eth_comp_req ------------------------------------------------------------
def eth_comp_req(self, type):
self.comp_req_ord.append(type)
#--- eth_dep_add ------------------------------------------------------------
def eth_dep_add(self, type, dep):
if type not in self.type_dep:
self.type_dep[type] = []
self.type_dep[type].append(dep)
#--- eth_reg_type -----------------------------------------------------------
def eth_reg_type(self, ident, val):
#print "eth_reg_type(ident='%s', type='%s')" % (ident, val.type)
if ident in self.type:
if self.type[ident]['import'] and (self.type[ident]['import'] == self.Module()) :
# replace imported type
del self.type[ident]
self.type_imp.remove(ident)
else:
raise DuplicateError("type", ident)
val.ident = ident
self.type[ident] = { 'val' : val, 'import' : None }
self.type[ident]['module'] = self.Module()
self.type[ident]['proto'] = self.proto
if len(ident.split('/')) > 1:
self.type[ident]['tname'] = val.eth_tname()
else:
self.type[ident]['tname'] = asn2c(ident)
self.type[ident]['export'] = self.conform.use_item('EXPORTS', ident)
self.type[ident]['enum'] = self.conform.use_item('MAKE_ENUM', ident)
self.type[ident]['vals_ext'] = self.conform.use_item('USE_VALS_EXT', ident)
self.type[ident]['user_def'] = self.conform.use_item('USER_DEFINED', ident)
self.type[ident]['no_emit'] = self.conform.use_item('NO_EMIT', ident)
self.type[ident]['tname'] = self.conform.use_item('TYPE_RENAME', ident, val_dflt=self.type[ident]['tname'])
self.type[ident]['ethname'] = ''
if (val.type == 'Type_Ref') or (val.type == 'TaggedType') or (val.type == 'SelectionType') :
self.type[ident]['attr'] = {}
else:
(ftype, display) = val.eth_ftype(self)
self.type[ident]['attr'] = { 'TYPE' : ftype, 'DISPLAY' : display,
'STRINGS' : val.eth_strings(), 'BITMASK' : '0' }
self.type[ident]['attr'].update(self.conform.use_item('TYPE_ATTR', ident))
self.type_ord.append(ident)
# PDU
if (self.conform.check_item('PDU', ident)):
self.eth_reg_field(ident, ident, impl=val.HasImplicitTag(self), pdu=self.conform.use_item('PDU', ident))
#--- eth_reg_objectclass ----------------------------------------------------------
def eth_reg_objectclass(self, ident, val):
#print "eth_reg_objectclass(ident='%s')" % (ident)
if ident in self.objectclass:
if self.objectclass[ident]['import'] and (self.objectclass[ident]['import'] == self.Module()) :
# replace imported object class
del self.objectclass[ident]
self.objectclass_imp.remove(ident)
elif isinstance(self.objectclass[ident]['val'], Class_Ref) and \
isinstance(val, Class_Ref) and \
(self.objectclass[ident]['val'].val == val.val):
pass # ignore duplicated CLASS1 ::= CLASS2
else:
raise DuplicateError("object class", ident)
self.objectclass[ident] = { 'import' : None, 'module' : self.Module(), 'proto' : self.proto }
self.objectclass[ident]['val'] = val
self.objectclass[ident]['export'] = self.conform.use_item('EXPORTS', ident)
self.objectclass_ord.append(ident)
#--- eth_reg_value ----------------------------------------------------------
def eth_reg_value(self, ident, type, value, ethname=None):
#print "eth_reg_value(ident='%s')" % (ident)
if ident in self.value:
if self.value[ident]['import'] and (self.value[ident]['import'] == self.Module()) :
# replace imported value
del self.value[ident]
self.value_imp.remove(ident)
elif ethname:
self.value[ident]['ethname'] = ethname
return
else:
raise DuplicateError("value", ident)
self.value[ident] = { 'import' : None, 'module' : self.Module(), 'proto' : self.proto,
'type' : type, 'value' : value,
'no_emit' : False }
self.value[ident]['export'] = self.conform.use_item('EXPORTS', ident)
self.value[ident]['ethname'] = ''
if (ethname): self.value[ident]['ethname'] = ethname
self.value_ord.append(ident)
#--- eth_reg_field ----------------------------------------------------------
def eth_reg_field(self, ident, type, idx='', parent=None, impl=False, pdu=None):
#print "eth_reg_field(ident='%s', type='%s')" % (ident, type)
if ident in self.field:
if pdu and (type == self.field[ident]['type']):
pass # OK already created PDU
else:
raise DuplicateError("field", ident)
self.field[ident] = {'type' : type, 'idx' : idx, 'impl' : impl, 'pdu' : pdu,
'modified' : '', 'attr' : {} }
name = ident.split('/')[-1]
if self.remove_prefix and name.startswith(self.remove_prefix):
name = name[len(self.remove_prefix):]
if len(ident.split('/')) > 1 and name == ITEM_FIELD_NAME: # Sequence/Set of type
if len(self.field[ident]['type'].split('/')) > 1:
self.field[ident]['attr']['NAME'] = '"%s item"' % ident.split('/')[-2]
self.field[ident]['attr']['ABBREV'] = asn2c(ident.split('/')[-2] + name)
else:
self.field[ident]['attr']['NAME'] = '"%s"' % self.field[ident]['type']
self.field[ident]['attr']['ABBREV'] = asn2c(self.field[ident]['type'])
else:
self.field[ident]['attr']['NAME'] = '"%s"' % name
self.field[ident]['attr']['ABBREV'] = asn2c(name)
if self.conform.check_item('FIELD_ATTR', ident):
self.field[ident]['modified'] = '#' + str(id(self))
self.field[ident]['attr'].update(self.conform.use_item('FIELD_ATTR', ident))
if (pdu):
self.field[ident]['pdu']['export'] = (self.conform.use_item('EXPORTS', ident + '_PDU') != 0)
self.pdu_ord.append(ident)
else:
self.field_ord.append(ident)
if parent:
self.eth_dep_add(parent, type)
def eth_dummy_eag_field_required(self):
if (not self.dummy_eag_field):
self.dummy_eag_field = 'eag_field'
#--- eth_clean --------------------------------------------------------------
def eth_clean(self):
self.proto = self.proto_opt;
#--- ASN.1 tables ----------------
self.assign = {}
self.assign_ord = []
self.field = {}
self.pdu_ord = []
self.field_ord = []
self.type = {}
self.type_ord = []
self.type_imp = []
self.type_dep = {}
self.sel_req = {}
self.sel_req_ord = []
self.comp_req_ord = []
self.vassign = {}
self.vassign_ord = []
self.value = {}
self.value_ord = []
self.value_imp = []
self.objectclass = {}
self.objectclass_ord = []
self.objectclass_imp = []
self.oassign = {}
self.oassign_ord = []
self.oassign_cls = {}
#--- Modules ------------
self.modules = []
self.exports_all = False
self.exports = []
self.cexports = []
self.vexports = []
#--- types -------------------
self.eth_type = {}
self.eth_type_ord = []
self.eth_export_ord = []
self.eth_type_dupl = {}
self.named_bit = []
#--- value dependencies -------------------
self.value_dep = {}
#--- values -------------------
self.eth_value = {}
self.eth_value_ord = []
#--- fields -------------------------
self.eth_hf = {}
self.eth_hf_ord = []
self.eth_hfpdu_ord = []
self.eth_hf_dupl = {}
self.dummy_eag_field = None
#--- type dependencies -------------------
self.eth_type_ord1 = []
self.eth_dep_cycle = []
self.dep_cycle_eth_type = {}
#--- value dependencies and export -------------------
self.eth_value_ord1 = []
self.eth_vexport_ord = []
#--- eth_prepare ------------------------------------------------------------
def eth_prepare(self):
self.eproto = asn2c(self.proto)
#--- dummy types/fields for PDU registration ---
nm = 'NULL'
if (self.conform.check_item('PDU', nm)):
self.eth_reg_type('_dummy/'+nm, NullType())
self.eth_reg_field(nm, '_dummy/'+nm, pdu=self.conform.use_item('PDU', nm))
#--- required PDUs ----------------------------
for t in self.type_ord:
pdu = self.type[t]['val'].eth_need_pdu(self)
if not pdu: continue
f = pdu['type']
pdu['reg'] = None
pdu['hidden'] = False
pdu['need_decl'] = True
if f not in self.field:
self.eth_reg_field(f, f, pdu=pdu)
#--- values -> named values -------------------
t_for_update = {}
for v in self.value_ord:
if (self.value[v]['type'].type == 'Type_Ref') or self.conform.check_item('ASSIGN_VALUE_TO_TYPE', v):
if self.conform.check_item('ASSIGN_VALUE_TO_TYPE', v):
tnm = self.conform.use_item('ASSIGN_VALUE_TO_TYPE', v)
else:
tnm = self.value[v]['type'].val
if tnm in self.type \
and not self.type[tnm]['import'] \
and (self.type[tnm]['val'].type == 'IntegerType'):
self.type[tnm]['val'].add_named_value(v, self.value[v]['value'])
self.value[v]['no_emit'] = True
t_for_update[tnm] = True
for t in list(t_for_update.keys()):
self.type[t]['attr']['STRINGS'] = self.type[t]['val'].eth_strings()
self.type[t]['attr'].update(self.conform.use_item('TYPE_ATTR', t))
#--- required components of ---------------------------
#print "self.comp_req_ord = ", self.comp_req_ord
for t in self.comp_req_ord:
self.type[t]['val'].eth_reg_sub(t, self, components_available=True)
#--- required selection types ---------------------------
#print "self.sel_req_ord = ", self.sel_req_ord
for t in self.sel_req_ord:
tt = self.sel_req[t]['typ']
if tt not in self.type:
self.dummy_import_type(t)
elif self.type[tt]['import']:
self.eth_import_type(t, self.type[tt]['import'], self.type[tt]['proto'])
else:
self.type[tt]['val'].sel_req(t, self.sel_req[t]['sel'], self)
#--- types -------------------
for t in self.type_imp: # imported types
nm = asn2c(t)
self.eth_type[nm] = { 'import' : self.type[t]['import'],
'proto' : asn2c(self.type[t]['proto']),
'attr' : {}, 'ref' : []}
self.eth_type[nm]['attr'].update(self.conform.use_item('ETYPE_ATTR', nm))
self.type[t]['ethname'] = nm
for t in self.type_ord: # dummy import for missing type reference
tp = self.type[t]['val']
#print "X : %s %s " % (t, tp.type)
if isinstance(tp, TaggedType):
#print "%s : %s " % (tp.type, t)
tp = tp.val
if isinstance(tp, Type_Ref):
#print "%s : %s ::= %s " % (tp.type, t, tp.val)
if tp.val not in self.type:
self.dummy_import_type(tp.val)
for t in self.type_ord:
nm = self.type[t]['tname']
if ((nm.find('#') >= 0) or
((len(t.split('/'))>1) and
(self.conform.get_fn_presence(t) or self.conform.check_item('FN_PARS', t) or
self.conform.get_fn_presence('/'.join((t,ITEM_FIELD_NAME))) or self.conform.check_item('FN_PARS', '/'.join((t,ITEM_FIELD_NAME)))) and
not self.conform.check_item('TYPE_RENAME', t))):
if len(t.split('/')) == 2 and t.split('/')[1] == ITEM_FIELD_NAME: # Sequence of type at the 1st level
nm = t.split('/')[0] + t.split('/')[1]
elif t.split('/')[-1] == ITEM_FIELD_NAME: # Sequence/Set of type at next levels
nm = 'T_' + self.conform.use_item('FIELD_RENAME', '/'.join(t.split('/')[0:-1]), val_dflt=t.split('/')[-2]) + t.split('/')[-1]
elif t.split('/')[-1] == UNTAG_TYPE_NAME: # Untagged type
nm = self.type['/'.join(t.split('/')[0:-1])]['ethname'] + '_U'
else:
nm = 'T_' + self.conform.use_item('FIELD_RENAME', t, val_dflt=t.split('/')[-1])
nm = asn2c(nm)
if nm in self.eth_type:
if nm in self.eth_type_dupl:
self.eth_type_dupl[nm].append(t)
else:
self.eth_type_dupl[nm] = [self.eth_type[nm]['ref'][0], t]
nm += '_%02d' % (len(self.eth_type_dupl[nm])-1)
if nm in self.eth_type:
self.eth_type[nm]['ref'].append(t)
else:
self.eth_type_ord.append(nm)
self.eth_type[nm] = { 'import' : None, 'proto' : self.eproto, 'export' : 0, 'enum' : 0, 'vals_ext' : 0,
'user_def' : EF_TYPE|EF_VALS, 'no_emit' : EF_TYPE|EF_VALS,
'val' : self.type[t]['val'],
'attr' : {}, 'ref' : [t]}
self.type[t]['ethname'] = nm
if (not self.eth_type[nm]['export'] and self.type[t]['export']): # new export
self.eth_export_ord.append(nm)
self.eth_type[nm]['export'] |= self.type[t]['export']
self.eth_type[nm]['enum'] |= self.type[t]['enum']
self.eth_type[nm]['vals_ext'] |= self.type[t]['vals_ext']
self.eth_type[nm]['user_def'] &= self.type[t]['user_def']
self.eth_type[nm]['no_emit'] &= self.type[t]['no_emit']
if self.type[t]['attr'].get('STRINGS') == '$$':
use_ext = self.type[t]['vals_ext']
if (use_ext):
self.eth_type[nm]['attr']['STRINGS'] = '&%s_ext' % (self.eth_vals_nm(nm))
else:
self.eth_type[nm]['attr']['STRINGS'] = 'VALS(%s)' % (self.eth_vals_nm(nm))
self.eth_type[nm]['attr'].update(self.conform.use_item('ETYPE_ATTR', nm))
for t in self.eth_type_ord:
bits = self.eth_type[t]['val'].eth_named_bits()
if (bits):
for (val, id) in bits:
self.named_bit.append({'name' : id, 'val' : val,
'ethname' : 'hf_%s_%s_%s' % (self.eproto, t, asn2c(id)),
'ftype' : 'FT_BOOLEAN', 'display' : '8',
'strings' : 'NULL',
'bitmask' : '0x'+('80','40','20','10','08','04','02','01')[val%8]})
if self.eth_type[t]['val'].eth_need_tree():
self.eth_type[t]['tree'] = "ett_%s_%s" % (self.eth_type[t]['proto'], t)
else:
self.eth_type[t]['tree'] = None
#--- register values from enums ------------
for t in self.eth_type_ord:
if (self.eth_type[t]['val'].eth_has_enum(t, self)):
self.eth_type[t]['val'].reg_enum_vals(t, self)
#--- value dependencies -------------------
for v in self.value_ord:
if isinstance (self.value[v]['value'], Value):
dep = self.value[v]['value'].get_dep()
else:
dep = self.value[v]['value']
if dep and dep in self.value:
self.value_dep.setdefault(v, []).append(dep)
#--- exports all necessary values
for v in self.value_ord:
if not self.value[v]['export']: continue
deparr = self.value_dep.get(v, [])
while deparr:
d = deparr.pop()
if not self.value[d]['import']:
if not self.value[d]['export']:
self.value[d]['export'] = EF_TYPE
deparr.extend(self.value_dep.get(d, []))
#--- values -------------------
for v in self.value_imp:
nm = asn2c(v)
self.eth_value[nm] = { 'import' : self.value[v]['import'],
'proto' : asn2c(self.value[v]['proto']),
'ref' : []}
self.value[v]['ethname'] = nm
for v in self.value_ord:
if (self.value[v]['ethname']):
continue
if (self.value[v]['no_emit']):
continue
nm = asn2c(v)
self.eth_value[nm] = { 'import' : None,
'proto' : asn2c(self.value[v]['proto']),
'export' : self.value[v]['export'], 'ref' : [v] }
self.eth_value[nm]['value'] = self.value[v]['value']
self.eth_value_ord.append(nm)
self.value[v]['ethname'] = nm
#--- fields -------------------------
for f in (self.pdu_ord + self.field_ord):
if len(f.split('/')) > 1 and f.split('/')[-1] == ITEM_FIELD_NAME: # Sequence/Set of type
nm = self.conform.use_item('FIELD_RENAME', '/'.join(f.split('/')[0:-1]), val_dflt=f.split('/')[-2]) + f.split('/')[-1]
else:
nm = f.split('/')[-1]
nm = self.conform.use_item('FIELD_RENAME', f, val_dflt=nm)
nm = asn2c(nm)
if (self.field[f]['pdu']):
nm += '_PDU'
if (not self.merge_modules or self.field[f]['pdu']['export']):
nm = self.eproto + '_' + nm
t = self.field[f]['type']
if t in self.type:
ethtype = self.type[t]['ethname']
else: # undefined type
ethtype = self.dummy_import_type(t)
ethtypemod = ethtype + self.field[f]['modified']
if nm in self.eth_hf:
if nm in self.eth_hf_dupl:
if ethtypemod in self.eth_hf_dupl[nm]:
nm = self.eth_hf_dupl[nm][ethtypemod]
self.eth_hf[nm]['ref'].append(f)
self.field[f]['ethname'] = nm
continue
else:
nmx = nm + ('_%02d' % (len(self.eth_hf_dupl[nm])))
self.eth_hf_dupl[nm][ethtype] = nmx
nm = nmx
else:
if (self.eth_hf[nm]['ethtype']+self.eth_hf[nm]['modified']) == ethtypemod:
self.eth_hf[nm]['ref'].append(f)
self.field[f]['ethname'] = nm
continue
else:
nmx = nm + '_01'
self.eth_hf_dupl[nm] = {self.eth_hf[nm]['ethtype']+self.eth_hf[nm]['modified'] : nm, \
ethtypemod : nmx}
nm = nmx
if (self.field[f]['pdu']):
self.eth_hfpdu_ord.append(nm)
else:
self.eth_hf_ord.append(nm)
fullname = 'hf_%s_%s' % (self.eproto, nm)
attr = self.eth_get_type_attr(self.field[f]['type']).copy()
attr.update(self.field[f]['attr'])
if (self.NAPI() and 'NAME' in attr):
attr['NAME'] += self.field[f]['idx']
attr.update(self.conform.use_item('EFIELD_ATTR', nm))
use_vals_ext = self.eth_type[ethtype].get('vals_ext')
if (use_vals_ext):
attr['DISPLAY'] += '|BASE_EXT_STRING'
self.eth_hf[nm] = {'fullname' : fullname, 'pdu' : self.field[f]['pdu'],
'ethtype' : ethtype, 'modified' : self.field[f]['modified'],
'attr' : attr.copy(),
'ref' : [f]}
self.field[f]['ethname'] = nm
if (self.dummy_eag_field):
# Prepending "dummy_" avoids matching checkhf.pl.
self.dummy_eag_field = 'dummy_hf_%s_%s' % (self.eproto, self.dummy_eag_field)
#--- type dependencies -------------------
(self.eth_type_ord1, self.eth_dep_cycle) = dependency_compute(self.type_ord, self.type_dep, map_fn = lambda t: self.type[t]['ethname'], ignore_fn = lambda t: self.type[t]['import'])
i = 0
while i < len(self.eth_dep_cycle):
t = self.type[self.eth_dep_cycle[i][0]]['ethname']
self.dep_cycle_eth_type.setdefault(t, []).append(i)
i += 1
#--- value dependencies and export -------------------
for v in self.eth_value_ord:
if self.eth_value[v]['export']:
self.eth_vexport_ord.append(v)
else:
self.eth_value_ord1.append(v)
#--- export tags, values, ... ---
for t in self.exports:
if t not in self.type:
continue
if self.type[t]['import']:
continue
m = self.type[t]['module']
if not self.Per():
if m not in self.all_tags:
self.all_tags[m] = {}
self.all_tags[m][t] = self.type[t]['val'].GetTTag(self)
if m not in self.all_type_attr:
self.all_type_attr[m] = {}
self.all_type_attr[m][t] = self.eth_get_type_attr(t).copy()
for v in self.vexports:
if v not in self.value:
continue
if self.value[v]['import']:
continue
m = self.value[v]['module']
if m not in self.all_vals:
self.all_vals[m] = {}
vv = self.value[v]['value']
if isinstance (vv, Value):
vv = vv.to_str(self)
self.all_vals[m][v] = vv
#--- eth_vals_nm ------------------------------------------------------------
def eth_vals_nm(self, tname):
out = ""
if (not self.eth_type[tname]['export'] & EF_NO_PROT):
out += "%s_" % (self.eproto)
out += "%s_vals" % (tname)
return out
#--- eth_vals ---------------------------------------------------------------
def eth_vals(self, tname, vals):
out = ""
has_enum = self.eth_type[tname]['enum'] & EF_ENUM
use_ext = self.eth_type[tname]['vals_ext']
if (use_ext):
vals.sort(key=lambda vals_entry: int(vals_entry[0]))
if (not self.eth_type[tname]['export'] & EF_VALS):
out += 'static '
if (self.eth_type[tname]['export'] & EF_VALS) and (self.eth_type[tname]['export'] & EF_TABLE):
out += 'static '
out += "const value_string %s[] = {\n" % (self.eth_vals_nm(tname))
for (val, id) in vals:
if (has_enum):
vval = self.eth_enum_item(tname, id)
else:
vval = val
out += ' { %3s, "%s" },\n' % (vval, id)
out += " { 0, NULL }\n};\n"
if (use_ext):
out += "\nstatic value_string_ext %s_ext = VALUE_STRING_EXT_INIT(%s);\n" % (self.eth_vals_nm(tname), self.eth_vals_nm(tname))
return out
#--- eth_enum_prefix ------------------------------------------------------------
def eth_enum_prefix(self, tname, type=False):
out = ""
if (self.eth_type[tname]['export'] & EF_ENUM):
no_prot = self.eth_type[tname]['export'] & EF_NO_PROT
else:
no_prot = self.eth_type[tname]['enum'] & EF_NO_PROT
if (not no_prot):
out += self.eproto
if ((not self.eth_type[tname]['enum'] & EF_NO_TYPE) or type):
if (out): out += '_'
out += tname
if (self.eth_type[tname]['enum'] & EF_UCASE):
out = out.upper()
if (out): out += '_'
return out
#--- eth_enum_nm ------------------------------------------------------------
def eth_enum_nm(self, tname):
out = self.eth_enum_prefix(tname, type=True)
out += "enum"
return out
#--- eth_enum_item ---------------------------------------------------------------
def eth_enum_item(self, tname, ident):
out = self.eth_enum_prefix(tname)
out += asn2c(ident)
if (self.eth_type[tname]['enum'] & EF_UCASE):
out = out.upper()
return out
#--- eth_enum ---------------------------------------------------------------
def eth_enum(self, tname, vals):
out = ""
if (self.eth_type[tname]['enum'] & EF_DEFINE):
out += "/* enumerated values for %s */\n" % (tname)
for (val, id) in vals:
out += '#define %-12s %3s\n' % (self.eth_enum_item(tname, id), val)
else:
out += "typedef enum _%s {\n" % (self.eth_enum_nm(tname))
first_line = 1
for (val, id) in vals:
if (first_line == 1):
first_line = 0
else:
out += ",\n"
out += ' %-12s = %3s' % (self.eth_enum_item(tname, id), val)
out += "\n} %s;\n" % (self.eth_enum_nm(tname))
return out
#--- eth_bits ---------------------------------------------------------------
def eth_bits(self, tname, bits):
out = ""
out += "static const "
out += "asn_namedbit %(TABLE)s[] = {\n"
for (val, id) in bits:
out += ' { %2d, &hf_%s_%s_%s, -1, -1, "%s", NULL },\n' % (val, self.eproto, tname, asn2c(id), id)
out += " { 0, NULL, 0, 0, NULL, NULL }\n};\n"
return out
#--- eth_type_fn_h ----------------------------------------------------------
def eth_type_fn_h(self, tname):
out = ""
if (not self.eth_type[tname]['export'] & EF_TYPE):
out += 'static '
out += "int "
if (self.Ber()):
out += "dissect_%s_%s(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_)" % (self.eth_type[tname]['proto'], tname)
elif (self.Per()):
out += "dissect_%s_%s(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_)" % (self.eth_type[tname]['proto'], tname)
out += ";\n"
return out
#--- eth_fn_call ------------------------------------------------------------
def eth_fn_call(self, fname, ret=None, indent=2, par=None):
out = indent * ' '
if (ret):
if (ret == 'return'):
out += 'return '
else:
out += ret + ' = '
out += fname + '('
ind = len(out)
for i in range(len(par)):
if (i>0): out += ind * ' '
out += ', '.join(par[i])
if (i<(len(par)-1)): out += ',\n'
out += ');\n'
return out
#--- eth_type_fn_hdr --------------------------------------------------------
def eth_type_fn_hdr(self, tname):
out = '\n'
if (not self.eth_type[tname]['export'] & EF_TYPE):
out += 'static '
out += "int\n"
if (self.Ber()):
out += "dissect_%s_%s(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {\n" % (self.eth_type[tname]['proto'], tname)
elif (self.Per()):
out += "dissect_%s_%s(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {\n" % (self.eth_type[tname]['proto'], tname)
#if self.conform.get_fn_presence(tname):
# out += self.conform.get_fn_text(tname, 'FN_HDR')
#el
if self.conform.get_fn_presence(self.eth_type[tname]['ref'][0]):
out += self.conform.get_fn_text(self.eth_type[tname]['ref'][0], 'FN_HDR')
return out
#--- eth_type_fn_ftr --------------------------------------------------------
def eth_type_fn_ftr(self, tname):
out = '\n'
#if self.conform.get_fn_presence(tname):
# out += self.conform.get_fn_text(tname, 'FN_FTR')
#el
if self.conform.get_fn_presence(self.eth_type[tname]['ref'][0]):
out += self.conform.get_fn_text(self.eth_type[tname]['ref'][0], 'FN_FTR')
out += " return offset;\n"
out += "}\n"
return out
#--- eth_type_fn_body -------------------------------------------------------
def eth_type_fn_body(self, tname, body, pars=None):
out = body
#if self.conform.get_fn_body_presence(tname):
# out = self.conform.get_fn_text(tname, 'FN_BODY')
#el
if self.conform.get_fn_body_presence(self.eth_type[tname]['ref'][0]):
out = self.conform.get_fn_text(self.eth_type[tname]['ref'][0], 'FN_BODY')
if pars:
try:
out = out % pars
except (TypeError):
pass
return out
#--- eth_out_pdu_decl ----------------------------------------------------------
def eth_out_pdu_decl(self, f):
t = self.eth_hf[f]['ethtype']
out = ''
if (not self.eth_hf[f]['pdu']['export']):
out += 'static '
out += 'int '
out += 'dissect_'+f+'(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, void *data _U_);\n'
return out
#--- eth_output_hf ----------------------------------------------------------
def eth_output_hf (self):
if not len(self.eth_hf_ord) and not len(self.eth_hfpdu_ord) and not len(self.named_bit): return
fx = self.output.file_open('hf')
for f in (self.eth_hfpdu_ord + self.eth_hf_ord):
fx.write("%-50s/* %s */\n" % ("static int %s = -1; " % (self.eth_hf[f]['fullname']), self.eth_hf[f]['ethtype']))
if (self.named_bit):
fx.write('/* named bits */\n')
for nb in self.named_bit:
fx.write("static int %s = -1;\n" % (nb['ethname']))
if (self.dummy_eag_field):
fx.write("static int %s = -1; /* never registered */\n" % (self.dummy_eag_field))
self.output.file_close(fx)
#--- eth_output_hf_arr ------------------------------------------------------
def eth_output_hf_arr (self):
if not len(self.eth_hf_ord) and not len(self.eth_hfpdu_ord) and not len(self.named_bit): return
fx = self.output.file_open('hfarr')
for f in (self.eth_hfpdu_ord + self.eth_hf_ord):
t = self.eth_hf[f]['ethtype']
if self.remove_prefix and t.startswith(self.remove_prefix):
t = t[len(self.remove_prefix):]
name=self.eth_hf[f]['attr']['NAME']
try: # Python < 3
trantab = maketrans("- ", "__")
except:
trantab = str.maketrans("- ", "__")
name = name.translate(trantab)
namelower = name.lower()
tquoted_lower = '"' + t.lower() + '"'
# Try to avoid giving blurbs that give no more info than the name
if tquoted_lower == namelower or \
t == "NULL" or \
tquoted_lower.replace("t_", "") == namelower:
blurb = 'NULL'
else:
blurb = '"%s"' % (t)
attr = self.eth_hf[f]['attr'].copy()
if attr['TYPE'] == 'FT_NONE':
attr['ABBREV'] = '"%s.%s_element"' % (self.proto, attr['ABBREV'])
else:
attr['ABBREV'] = '"%s.%s"' % (self.proto, attr['ABBREV'])
if 'BLURB' not in attr:
attr['BLURB'] = blurb
fx.write(' { &%s,\n' % (self.eth_hf[f]['fullname']))
fx.write(' { %(NAME)s, %(ABBREV)s,\n' % attr)
fx.write(' %(TYPE)s, %(DISPLAY)s, %(STRINGS)s, %(BITMASK)s,\n' % attr)
fx.write(' %(BLURB)s, HFILL }},\n' % attr)
for nb in self.named_bit:
fx.write(' { &%s,\n' % (nb['ethname']))
fx.write(' { "%s", "%s.%s",\n' % (nb['name'], self.proto, nb['name']))
fx.write(' %s, %s, %s, %s,\n' % (nb['ftype'], nb['display'], nb['strings'], nb['bitmask']))
fx.write(' NULL, HFILL }},\n')
self.output.file_close(fx)
#--- eth_output_ett ---------------------------------------------------------
def eth_output_ett (self):
fx = self.output.file_open('ett')
fempty = True
#fx.write("static gint ett_%s = -1;\n" % (self.eproto))
for t in self.eth_type_ord:
if self.eth_type[t]['tree']:
fx.write("static gint %s = -1;\n" % (self.eth_type[t]['tree']))
fempty = False
self.output.file_close(fx, discard=fempty)
#--- eth_output_ett_arr -----------------------------------------------------
def eth_output_ett_arr(self):
fx = self.output.file_open('ettarr')
fempty = True
#fx.write(" &ett_%s,\n" % (self.eproto))
for t in self.eth_type_ord:
if self.eth_type[t]['tree']:
fx.write(" &%s,\n" % (self.eth_type[t]['tree']))
fempty = False
self.output.file_close(fx, discard=fempty)
#--- eth_output_export ------------------------------------------------------
def eth_output_export(self):
fx = self.output.file_open('exp', ext='h')
for t in self.eth_export_ord: # vals
if (self.eth_type[t]['export'] & EF_ENUM) and self.eth_type[t]['val'].eth_has_enum(t, self):
fx.write(self.eth_type[t]['val'].eth_type_enum(t, self))
if (self.eth_type[t]['export'] & EF_VALS) and self.eth_type[t]['val'].eth_has_vals():
if not self.eth_type[t]['export'] & EF_TABLE:
if self.eth_type[t]['export'] & EF_WS_DLL:
fx.write("WS_DLL_PUBLIC ")
else:
fx.write("extern ")
fx.write("const value_string %s[];\n" % (self.eth_vals_nm(t)))
else:
fx.write(self.eth_type[t]['val'].eth_type_vals(t, self))
for t in self.eth_export_ord: # functions
if (self.eth_type[t]['export'] & EF_TYPE):
if self.eth_type[t]['export'] & EF_EXTERN:
if self.eth_type[t]['export'] & EF_WS_DLL:
fx.write("WS_DLL_PUBLIC ")
else:
fx.write("extern ")
fx.write(self.eth_type_fn_h(t))
for f in self.eth_hfpdu_ord: # PDUs
if (self.eth_hf[f]['pdu'] and self.eth_hf[f]['pdu']['export']):
fx.write(self.eth_out_pdu_decl(f))
self.output.file_close(fx)
#--- eth_output_expcnf ------------------------------------------------------
def eth_output_expcnf(self):
fx = self.output.file_open('exp', ext='cnf')
fx.write('#.MODULE\n')
maxw = 0
for (m, p) in self.modules:
if (len(m) > maxw): maxw = len(m)
for (m, p) in self.modules:
fx.write("%-*s %s\n" % (maxw, m, p))
fx.write('#.END\n\n')
for cls in self.objectclass_ord:
if self.objectclass[cls]['export']:
cnm = cls
if self.objectclass[cls]['export'] & EF_MODULE:
cnm = "$%s$%s" % (self.objectclass[cls]['module'], cnm)
fx.write('#.CLASS %s\n' % (cnm))
maxw = 2
for fld in self.objectclass[cls]['val'].fields:
w = len(fld.fld_repr()[0])
if (w > maxw): maxw = w
for fld in self.objectclass[cls]['val'].fields:
repr = fld.fld_repr()
fx.write('%-*s %s\n' % (maxw, repr[0], ' '.join(repr[1:])))
fx.write('#.END\n\n')
if self.Ber():
fx.write('#.IMPORT_TAG\n')
for t in self.eth_export_ord: # tags
if (self.eth_type[t]['export'] & EF_TYPE):
fx.write('%-24s ' % self.eth_type[t]['ref'][0])
fx.write('%s %s\n' % self.eth_type[t]['val'].GetTag(self))
fx.write('#.END\n\n')
fx.write('#.TYPE_ATTR\n')
for t in self.eth_export_ord: # attributes
if (self.eth_type[t]['export'] & EF_TYPE):
tnm = self.eth_type[t]['ref'][0]
if self.eth_type[t]['export'] & EF_MODULE:
tnm = "$%s$%s" % (self.type[tnm]['module'], tnm)
fx.write('%-24s ' % tnm)
attr = self.eth_get_type_attr(self.eth_type[t]['ref'][0]).copy()
fx.write('TYPE = %(TYPE)-9s DISPLAY = %(DISPLAY)-9s STRINGS = %(STRINGS)s BITMASK = %(BITMASK)s\n' % attr)
fx.write('#.END\n\n')
self.output.file_close(fx, keep_anyway=True)
#--- eth_output_val ------------------------------------------------------
def eth_output_val(self):
fx = self.output.file_open('val', ext='h')
for v in self.eth_value_ord1:
vv = self.eth_value[v]['value']
if isinstance (vv, Value):
vv = vv.to_str(self)
fx.write("#define %-30s %s\n" % (v, vv))
for t in self.eth_type_ord1:
if self.eth_type[t]['import']:
continue
if self.eth_type[t]['val'].eth_has_enum(t, self) and not (self.eth_type[t]['export'] & EF_ENUM):
fx.write(self.eth_type[t]['val'].eth_type_enum(t, self))
self.output.file_close(fx)
#--- eth_output_valexp ------------------------------------------------------
def eth_output_valexp(self):
if (not len(self.eth_vexport_ord)): return
fx = self.output.file_open('valexp', ext='h')
for v in self.eth_vexport_ord:
vv = self.eth_value[v]['value']
if isinstance (vv, Value):
vv = vv.to_str(self)
fx.write("#define %-30s %s\n" % (v, vv))
self.output.file_close(fx)
#--- eth_output_types -------------------------------------------------------
def eth_output_types(self):
def out_pdu(f):
t = self.eth_hf[f]['ethtype']
impl = 'FALSE'
out = ''
if (not self.eth_hf[f]['pdu']['export']):
out += 'static '
out += 'int '
out += 'dissect_'+f+'(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, void *data _U_) {\n'
out += ' int offset = 0;\n'
off_par = 'offset'
ret_par = 'offset'
if (self.Per()):
if (self.Aligned()):
aligned = 'TRUE'
else:
aligned = 'FALSE'
out += " asn1_ctx_t asn1_ctx;\n"
out += self.eth_fn_call('asn1_ctx_init', par=(('&asn1_ctx', 'ASN1_ENC_PER', aligned, 'pinfo'),))
if (self.Ber()):
out += " asn1_ctx_t asn1_ctx;\n"
out += self.eth_fn_call('asn1_ctx_init', par=(('&asn1_ctx', 'ASN1_ENC_BER', 'TRUE', 'pinfo'),))
par=((impl, 'tvb', off_par,'&asn1_ctx', 'tree', self.eth_hf[f]['fullname']),)
elif (self.Per()):
par=(('tvb', off_par, '&asn1_ctx', 'tree', self.eth_hf[f]['fullname']),)
else:
par=((),)
out += self.eth_fn_call('dissect_%s_%s' % (self.eth_type[t]['proto'], t), ret=ret_par, par=par)
if (self.Per()):
out += ' offset += 7; offset >>= 3;\n'
out += ' return offset;\n'
out += '}\n'
return out
#end out_pdu()
fx = self.output.file_open('fn')
pos = fx.tell()
if (len(self.eth_hfpdu_ord)):
first_decl = True
for f in self.eth_hfpdu_ord:
if (self.eth_hf[f]['pdu'] and self.eth_hf[f]['pdu']['need_decl']):
if first_decl:
fx.write('/*--- PDUs declarations ---*/\n')
first_decl = False
fx.write(self.eth_out_pdu_decl(f))
if not first_decl:
fx.write('\n')
if self.eth_dep_cycle:
fx.write('/*--- Cyclic dependencies ---*/\n\n')
i = 0
while i < len(self.eth_dep_cycle):
t = self.type[self.eth_dep_cycle[i][0]]['ethname']
if self.dep_cycle_eth_type[t][0] != i: i += 1; continue
fx.write(''.join(['/* %s */\n' % ' -> '.join(self.eth_dep_cycle[i]) for i in self.dep_cycle_eth_type[t]]))
if not self.eth_type[t]['export'] & EF_TYPE:
fx.write(self.eth_type_fn_h(t))
else:
fx.write('/*' + self.eth_type_fn_h(t).strip() + '*/\n')
fx.write('\n')
i += 1
fx.write('\n')
for t in self.eth_type_ord1:
if self.eth_type[t]['import']:
continue
if self.eth_type[t]['val'].eth_has_vals():
if self.eth_type[t]['no_emit'] & EF_VALS:
pass
elif self.eth_type[t]['user_def'] & EF_VALS:
fx.write("extern const value_string %s[];\n" % (self.eth_vals_nm(t)))
elif (self.eth_type[t]['export'] & EF_VALS) and (self.eth_type[t]['export'] & EF_TABLE):
pass
else:
fx.write(self.eth_type[t]['val'].eth_type_vals(t, self))
if self.eth_type[t]['no_emit'] & EF_TYPE:
pass
elif self.eth_type[t]['user_def'] & EF_TYPE:
fx.write(self.eth_type_fn_h(t))
else:
fx.write(self.eth_type[t]['val'].eth_type_fn(self.eth_type[t]['proto'], t, self))
fx.write('\n')
if (len(self.eth_hfpdu_ord)):
fx.write('/*--- PDUs ---*/\n\n')
for f in self.eth_hfpdu_ord:
if (self.eth_hf[f]['pdu']):
if (f in self.emitted_pdu):
fx.write(" /* %s already emitted */\n" % (f))
else:
fx.write(out_pdu(f))
self.emitted_pdu[f] = True
fx.write('\n')
fempty = pos == fx.tell()
self.output.file_close(fx, discard=fempty)
#--- eth_output_dis_hnd -----------------------------------------------------
def eth_output_dis_hnd(self):
fx = self.output.file_open('dis-hnd')
fempty = True
for f in self.eth_hfpdu_ord:
pdu = self.eth_hf[f]['pdu']
if (pdu and pdu['reg'] and not pdu['hidden']):
dis = self.proto
if (pdu['reg'] != '.'):
dis += '.' + pdu['reg']
fx.write('static dissector_handle_t %s_handle;\n' % (asn2c(dis)))
fempty = False
fx.write('\n')
self.output.file_close(fx, discard=fempty)
#--- eth_output_dis_reg -----------------------------------------------------
def eth_output_dis_reg(self):
fx = self.output.file_open('dis-reg')
fempty = True
for f in self.eth_hfpdu_ord:
pdu = self.eth_hf[f]['pdu']
if (pdu and pdu['reg']):
new_prefix = ''
if (pdu['new']): new_prefix = 'new_'
dis = self.proto
if (pdu['reg'] != '.'): dis += '.' + pdu['reg']
fx.write(' %sregister_dissector("%s", dissect_%s, proto_%s);\n' % (new_prefix, dis, f, self.eproto))
if (not pdu['hidden']):
fx.write(' %s_handle = find_dissector("%s");\n' % (asn2c(dis), dis))
fempty = False
fx.write('\n')
self.output.file_close(fx, discard=fempty)
#--- eth_output_dis_tab -----------------------------------------------------
def eth_output_dis_tab(self):
fx = self.output.file_open('dis-tab')
fempty = True
for k in self.conform.get_order('REGISTER'):
reg = self.conform.use_item('REGISTER', k)
if reg['pdu'] not in self.field: continue
f = self.field[reg['pdu']]['ethname']
pdu = self.eth_hf[f]['pdu']
new_prefix = ''
if (pdu['new']): new_prefix = 'new_'
if (reg['rtype'] in ('NUM', 'STR')):
rstr = ''
if (reg['rtype'] == 'STR'):
rstr = 'string'
else:
rstr = 'uint'
if (pdu['reg']):
dis = self.proto
if (pdu['reg'] != '.'): dis += '.' + pdu['reg']
if (not pdu['hidden']):
hnd = '%s_handle' % (asn2c(dis))
else:
hnd = 'find_dissector("%s")' % (dis)
else:
hnd = '%screate_dissector_handle(dissect_%s, proto_%s)' % (new_prefix, f, self.eproto)
rport = self.value_get_eth(reg['rport'])
fx.write(' dissector_add_%s("%s", %s, %s);\n' % (rstr, reg['rtable'], rport, hnd))
elif (reg['rtype'] in ('BER', 'PER')):
roid = self.value_get_eth(reg['roid'])
fx.write(' %sregister_%s_oid_dissector(%s, dissect_%s, proto_%s, %s);\n' % (new_prefix, reg['rtype'].lower(), roid, f, self.eproto, reg['roidname']))
fempty = False
fx.write('\n')
self.output.file_close(fx, discard=fempty)
#--- eth_output_syn_reg -----------------------------------------------------
def eth_output_syn_reg(self):
fx = self.output.file_open('syn-reg')
fempty = True
first_decl = True
for k in self.conform.get_order('SYNTAX'):
reg = self.conform.use_item('SYNTAX', k)
if reg['pdu'] not in self.field: continue
f = self.field[reg['pdu']]['ethname']
pdu = self.eth_hf[f]['pdu']
new_prefix = ''
if (pdu['new']): new_prefix = 'new_'
if first_decl:
fx.write(' /*--- Syntax registrations ---*/\n')
first_decl = False
fx.write(' %sregister_ber_syntax_dissector(%s, proto_%s, dissect_%s_PDU);\n' % (new_prefix, k, self.eproto, reg['pdu']));
fempty=False
self.output.file_close(fx, discard=fempty)
#--- eth_output_tables -----------------------------------------------------
def eth_output_tables(self):
for num in list(self.conform.report.keys()):
fx = self.output.file_open('table' + num)
for rep in self.conform.report[num]:
self.eth_output_table(fx, rep)
self.output.file_close(fx)
#--- eth_output_table -----------------------------------------------------
def eth_output_table(self, fx, rep):
if rep['type'] == 'HDR':
fx.write('\n')
if rep['var']:
var = rep['var']
var_list = var.split('.', 1)
cls = var_list[0]
del var_list[0]
flds = []
not_flds = []
sort_flds = []
for f in var_list:
if f[0] == '!':
not_flds.append(f[1:])
continue
if f[0] == '#':
flds.append(f[1:])
sort_flds.append(f)
continue
if f[0] == '@':
flds.append(f[1:])
sort_flds.append(f[1:])
continue
flds.append(f)
objs = {}
objs_ord = []
if (cls in self.oassign_cls):
for ident in self.oassign_cls[cls]:
obj = self.get_obj_repr(ident, flds, not_flds)
if not obj:
continue
obj['_LOOP'] = var
obj['_DICT'] = str(obj)
objs[ident] = obj
objs_ord.append(ident)
if (sort_flds):
# Sort identifiers according to the matching object in objs.
# The order is determined by sort_flds, keys prefixed by a
# '#' are compared numerically.
def obj_key_fn(name):
obj = objs[name]
return list(
int(obj[f[1:]]) if f[0] == '#' else obj[f]
for f in sort_flds
)
objs_ord.sort(key=obj_key_fn)
for ident in objs_ord:
obj = objs[ident]
try:
text = rep['text'] % obj
except (KeyError):
raise sys.exc_info()[0]("%s:%s invalid key %s for information object %s of %s" % (rep['fn'], rep['lineno'], sys.exc_info()[1], ident, var))
fx.write(text)
else:
fx.write("/* Unknown or empty loop list %s */\n" % (var))
else:
fx.write(rep['text'])
if rep['type'] == 'FTR':
fx.write('\n')
#--- dupl_report -----------------------------------------------------
def dupl_report(self):
# types
tmplist = sorted(self.eth_type_dupl.keys())
for t in tmplist:
msg = "The same type names for different types. Explicit type renaming is recommended.\n"
msg += t + "\n"
for tt in self.eth_type_dupl[t]:
msg += " %-20s %s\n" % (self.type[tt]['ethname'], tt)
warnings.warn_explicit(msg, UserWarning, '', 0)
# fields
tmplist = list(self.eth_hf_dupl.keys())
tmplist.sort()
for f in tmplist:
msg = "The same field names for different types. Explicit field renaming is recommended.\n"
msg += f + "\n"
for tt in list(self.eth_hf_dupl[f].keys()):
msg += " %-20s %-20s " % (self.eth_hf_dupl[f][tt], tt)
msg += ", ".join(self.eth_hf[self.eth_hf_dupl[f][tt]]['ref'])
msg += "\n"
warnings.warn_explicit(msg, UserWarning, '', 0)
#--- eth_do_output ------------------------------------------------------------
def eth_do_output(self):
if self.dbg('a'):
print("\n# Assignments")
for a in self.assign_ord:
v = ' '
if (self.assign[a]['virt']): v = '*'
print(v, a)
print("\n# Value assignments")
for a in self.vassign_ord:
print(' ', a)
print("\n# Information object assignments")
for a in self.oassign_ord:
print(" %-12s (%s)" % (a, self.oassign[a].cls))
if self.dbg('t'):
print("\n# Imported Types")
print("%-40s %-24s %-24s" % ("ASN.1 name", "Module", "Protocol"))
print("-" * 100)
for t in self.type_imp:
print("%-40s %-24s %-24s" % (t, self.type[t]['import'], self.type[t]['proto']))
print("\n# Imported Values")
print("%-40s %-24s %-24s" % ("ASN.1 name", "Module", "Protocol"))
print("-" * 100)
for t in self.value_imp:
print("%-40s %-24s %-24s" % (t, self.value[t]['import'], self.value[t]['proto']))
print("\n# Imported Object Classes")
print("%-40s %-24s %-24s" % ("ASN.1 name", "Module", "Protocol"))
print("-" * 100)
for t in self.objectclass_imp:
print("%-40s %-24s %-24s" % (t, self.objectclass[t]['import'], self.objectclass[t]['proto']))
print("\n# Exported Types")
print("%-31s %s" % ("Wireshark type", "Export Flag"))
print("-" * 100)
for t in self.eth_export_ord:
print("%-31s 0x%02X" % (t, self.eth_type[t]['export']))
print("\n# Exported Values")
print("%-40s %s" % ("Wireshark name", "Value"))
print("-" * 100)
for v in self.eth_vexport_ord:
vv = self.eth_value[v]['value']
if isinstance (vv, Value):
vv = vv.to_str(self)
print("%-40s %s" % (v, vv))
print("\n# ASN.1 Object Classes")
print("%-40s %-24s %-24s" % ("ASN.1 name", "Module", "Protocol"))
print("-" * 100)
for t in self.objectclass_ord:
print("%-40s " % (t))
print("\n# ASN.1 Types")
print("%-49s %-24s %-24s" % ("ASN.1 unique name", "'tname'", "Wireshark type"))
print("-" * 100)
for t in self.type_ord:
print("%-49s %-24s %-24s" % (t, self.type[t]['tname'], self.type[t]['ethname']))
print("\n# Wireshark Types")
print("Wireshark type References (ASN.1 types)")
print("-" * 100)
for t in self.eth_type_ord:
sys.stdout.write("%-31s %d" % (t, len(self.eth_type[t]['ref'])))
print(', '.join(self.eth_type[t]['ref']))
print("\n# ASN.1 Values")
print("%-40s %-18s %-20s %s" % ("ASN.1 unique name", "Type", "Value", "Wireshark value"))
print("-" * 100)
for v in self.value_ord:
vv = self.value[v]['value']
if isinstance (vv, Value):
vv = vv.to_str(self)
print("%-40s %-18s %-20s %s" % (v, self.value[v]['type'].eth_tname(), vv, self.value[v]['ethname']))
#print "\n# Wireshark Values"
#print "%-40s %s" % ("Wireshark name", "Value")
#print "-" * 100
#for v in self.eth_value_ord:
# vv = self.eth_value[v]['value']
# if isinstance (vv, Value):
# vv = vv.to_str(self)
# print "%-40s %s" % (v, vv)
print("\n# ASN.1 Fields")
print("ASN.1 unique name Wireshark name ASN.1 type")
print("-" * 100)
for f in (self.pdu_ord + self.field_ord):
print("%-40s %-20s %s" % (f, self.field[f]['ethname'], self.field[f]['type']))
print("\n# Wireshark Fields")
print("Wireshark name Wireshark type References (ASN.1 fields)")
print("-" * 100)
for f in (self.eth_hfpdu_ord + self.eth_hf_ord):
sys.stdout.write("%-30s %-20s %s" % (f, self.eth_hf[f]['ethtype'], len(self.eth_hf[f]['ref'])))
print(', '.join(self.eth_hf[f]['ref']))
#print "\n# Order after dependencies"
#print '\n'.join(self.eth_type_ord1)
print("\n# Cyclic dependencies")
for c in self.eth_dep_cycle:
print(' -> '.join(c))
self.dupl_report()
self.output.outnm = self.outnm_opt
if (not self.output.outnm):
self.output.outnm = self.proto
self.output.outnm = self.output.outnm.replace('.', '-')
if not self.justexpcnf:
self.eth_output_hf()
self.eth_output_ett()
self.eth_output_types()
self.eth_output_hf_arr()
self.eth_output_ett_arr()
self.eth_output_export()
self.eth_output_val()
self.eth_output_valexp()
self.eth_output_dis_hnd()
self.eth_output_dis_reg()
self.eth_output_dis_tab()
self.eth_output_syn_reg()
self.eth_output_tables()
if self.expcnf:
self.eth_output_expcnf()
def dbg_modules(self):
def print_mod(m):
sys.stdout.write("%-30s " % (m))
dep = self.module[m][:]
for i in range(len(dep)):
if dep[i] not in self.module:
dep[i] = '*' + dep[i]
print(', '.join(dep))
# end of print_mod()
(mod_ord, mod_cyc) = dependency_compute(self.module_ord, self.module, ignore_fn = lambda t: t not in self.module)
print("\n# ASN.1 Moudules")
print("Module name Dependency")
print("-" * 100)
new_ord = False
for m in (self.module_ord):
print_mod(m)
new_ord = new_ord or (self.module_ord.index(m) != mod_ord.index(m))
if new_ord:
print("\n# ASN.1 Moudules - in dependency order")
print("Module name Dependency")
print("-" * 100)
for m in (mod_ord):
print_mod(m)
if mod_cyc:
print("\nCyclic dependencies:")
for i in (list(range(len(mod_cyc)))):
print("%02d: %s" % (i + 1, str(mod_cyc[i])))
#--- EthCnf -------------------------------------------------------------------
class EthCnf:
def __init__(self):
self.ectx = None
self.tblcfg = {}
self.table = {}
self.order = {}
self.fn = {}
self.report = {}
self.suppress_line = False
self.include_path = []
# Value name Default value Duplicity check Usage check
self.tblcfg['EXPORTS'] = { 'val_nm' : 'flag', 'val_dflt' : 0, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['MAKE_ENUM'] = { 'val_nm' : 'flag', 'val_dflt' : 0, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['USE_VALS_EXT'] = { 'val_nm' : 'flag', 'val_dflt' : 0, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['PDU'] = { 'val_nm' : 'attr', 'val_dflt' : None, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['SYNTAX'] = { 'val_nm' : 'attr', 'val_dflt' : None, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['REGISTER'] = { 'val_nm' : 'attr', 'val_dflt' : None, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['USER_DEFINED'] = { 'val_nm' : 'flag', 'val_dflt' : 0, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['NO_EMIT'] = { 'val_nm' : 'flag', 'val_dflt' : 0, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['MODULE'] = { 'val_nm' : 'proto', 'val_dflt' : None, 'chk_dup' : True, 'chk_use' : False }
self.tblcfg['OMIT_ASSIGNMENT'] = { 'val_nm' : 'omit', 'val_dflt' : False, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['NO_OMIT_ASSGN'] = { 'val_nm' : 'omit', 'val_dflt' : True, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['VIRTUAL_ASSGN'] = { 'val_nm' : 'name', 'val_dflt' : None, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['SET_TYPE'] = { 'val_nm' : 'type', 'val_dflt' : None, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['TYPE_RENAME'] = { 'val_nm' : 'eth_name', 'val_dflt' : None, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['FIELD_RENAME'] = { 'val_nm' : 'eth_name', 'val_dflt' : None, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['IMPORT_TAG'] = { 'val_nm' : 'ttag', 'val_dflt' : (), 'chk_dup' : True, 'chk_use' : False }
self.tblcfg['FN_PARS'] = { 'val_nm' : 'pars', 'val_dflt' : {}, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['TYPE_ATTR'] = { 'val_nm' : 'attr', 'val_dflt' : {}, 'chk_dup' : True, 'chk_use' : False }
self.tblcfg['ETYPE_ATTR'] = { 'val_nm' : 'attr', 'val_dflt' : {}, 'chk_dup' : True, 'chk_use' : False }
self.tblcfg['FIELD_ATTR'] = { 'val_nm' : 'attr', 'val_dflt' : {}, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['EFIELD_ATTR'] = { 'val_nm' : 'attr', 'val_dflt' : {}, 'chk_dup' : True, 'chk_use' : True }
self.tblcfg['ASSIGNED_ID'] = { 'val_nm' : 'ids', 'val_dflt' : {}, 'chk_dup' : False,'chk_use' : False }
self.tblcfg['ASSIGN_VALUE_TO_TYPE'] = { 'val_nm' : 'name', 'val_dflt' : None, 'chk_dup' : True, 'chk_use' : True }
for k in list(self.tblcfg.keys()) :
self.table[k] = {}
self.order[k] = []
def add_item(self, table, key, fn, lineno, **kw):
if self.tblcfg[table]['chk_dup'] and key in self.table[table]:
warnings.warn_explicit("Duplicated %s for %s. Previous one is at %s:%d" %
(table, key, self.table[table][key]['fn'], self.table[table][key]['lineno']),
UserWarning, fn, lineno)
return
self.table[table][key] = {'fn' : fn, 'lineno' : lineno, 'used' : False}
self.table[table][key].update(kw)
self.order[table].append(key)
def update_item(self, table, key, fn, lineno, **kw):
if key not in self.table[table]:
self.table[table][key] = {'fn' : fn, 'lineno' : lineno, 'used' : False}
self.order[table].append(key)
self.table[table][key][self.tblcfg[table]['val_nm']] = {}
self.table[table][key][self.tblcfg[table]['val_nm']].update(kw[self.tblcfg[table]['val_nm']])
def get_order(self, table):
return self.order[table]
def check_item(self, table, key):
return key in self.table[table]
def copy_item(self, table, dst_key, src_key):
if (src_key in self.table[table]):
self.table[table][dst_key] = self.table[table][src_key]
def check_item_value(self, table, key, **kw):
return key in self.table[table] and kw.get('val_nm', self.tblcfg[table]['val_nm']) in self.table[table][key]
def use_item(self, table, key, **kw):
vdflt = kw.get('val_dflt', self.tblcfg[table]['val_dflt'])
if key not in self.table[table]: return vdflt
vname = kw.get('val_nm', self.tblcfg[table]['val_nm'])
#print "use_item() - set used for %s %s" % (table, key)
self.table[table][key]['used'] = True
return self.table[table][key].get(vname, vdflt)
def omit_assignment(self, type, ident, module):
if self.ectx.conform.use_item('OMIT_ASSIGNMENT', ident):
return True
if self.ectx.conform.use_item('OMIT_ASSIGNMENT', '*') or \
self.ectx.conform.use_item('OMIT_ASSIGNMENT', '*'+type) or \
self.ectx.conform.use_item('OMIT_ASSIGNMENT', '*/'+module) or \
self.ectx.conform.use_item('OMIT_ASSIGNMENT', '*'+type+'/'+module):
return self.ectx.conform.use_item('NO_OMIT_ASSGN', ident)
return False
def add_fn_line(self, name, ctx, line, fn, lineno):
if name not in self.fn:
self.fn[name] = {'FN_HDR' : None, 'FN_FTR' : None, 'FN_BODY' : None}
if (self.fn[name][ctx]):
self.fn[name][ctx]['text'] += line
else:
self.fn[name][ctx] = {'text' : line, 'used' : False,
'fn' : fn, 'lineno' : lineno}
def get_fn_presence(self, name):
#print "get_fn_presence('%s'):%s" % (name, str(self.fn.has_key(name)))
#if self.fn.has_key(name): print self.fn[name]
return name in self.fn
def get_fn_body_presence(self, name):
return name in self.fn and self.fn[name]['FN_BODY']
def get_fn_text(self, name, ctx):
if (name not in self.fn):
return '';
if (not self.fn[name][ctx]):
return '';
self.fn[name][ctx]['used'] = True
out = self.fn[name][ctx]['text']
if (not self.suppress_line):
out = '#line %u "%s"\n%s\n' % (self.fn[name][ctx]['lineno'], rel_dissector_path(self.fn[name][ctx]['fn']), out);
return out
def add_pdu(self, par, fn, lineno):
#print "add_pdu(par=%s, %s, %d)" % (str(par), fn, lineno)
(reg, hidden) = (None, False)
if (len(par) > 1): reg = par[1]
if (reg and reg[0]=='@'): (reg, hidden) = (reg[1:], True)
attr = {'new' : False, 'reg' : reg, 'hidden' : hidden, 'need_decl' : False, 'export' : False}
self.add_item('PDU', par[0], attr=attr, fn=fn, lineno=lineno)
return
def add_syntax(self, par, fn, lineno):
#print "add_syntax(par=%s, %s, %d)" % (str(par), fn, lineno)
if( (len(par) >=2)):
name = par[1]
else:
name = '"'+par[0]+'"'
attr = { 'pdu' : par[0] }
self.add_item('SYNTAX', name, attr=attr, fn=fn, lineno=lineno)
return
def add_register(self, pdu, par, fn, lineno):
#print "add_register(pdu=%s, par=%s, %s, %d)" % (pdu, str(par), fn, lineno)
if (par[0] in ('N', 'NUM')): rtype = 'NUM'; (pmin, pmax) = (2, 2)
elif (par[0] in ('S', 'STR')): rtype = 'STR'; (pmin, pmax) = (2, 2)
elif (par[0] in ('B', 'BER')): rtype = 'BER'; (pmin, pmax) = (1, 2)
elif (par[0] in ('P', 'PER')): rtype = 'PER'; (pmin, pmax) = (1, 2)
else: warnings.warn_explicit("Unknown registration type '%s'" % (par[2]), UserWarning, fn, lineno); return
if ((len(par)-1) < pmin):
warnings.warn_explicit("Too few parameters for %s registration type. At least %d parameters are required" % (rtype, pmin), UserWarning, fn, lineno)
return
if ((len(par)-1) > pmax):
warnings.warn_explicit("Too many parameters for %s registration type. Only %d parameters are allowed" % (rtype, pmax), UserWarning, fn, lineno)
attr = {'pdu' : pdu, 'rtype' : rtype}
if (rtype in ('NUM', 'STR')):
attr['rtable'] = par[1]
attr['rport'] = par[2]
rkey = '/'.join([rtype, attr['rtable'], attr['rport']])
elif (rtype in ('BER', 'PER')):
attr['roid'] = par[1]
attr['roidname'] = '""'
if (len(par)>=3):
attr['roidname'] = par[2]
elif attr['roid'][0] != '"':
attr['roidname'] = '"' + attr['roid'] + '"'
rkey = '/'.join([rtype, attr['roid']])
self.add_item('REGISTER', rkey, attr=attr, fn=fn, lineno=lineno)
def check_par(self, par, pmin, pmax, fn, lineno):
for i in range(len(par)):
if par[i] == '-':
par[i] = None
continue
if par[i][0] == '#':
par[i:] = []
break
if len(par) < pmin:
warnings.warn_explicit("Too few parameters. At least %d parameters are required" % (pmin), UserWarning, fn, lineno)
return None
if (pmax >= 0) and (len(par) > pmax):
warnings.warn_explicit("Too many parameters. Only %d parameters are allowed" % (pmax), UserWarning, fn, lineno)
return par[0:pmax]
return par
def read(self, fn):
def get_par(line, pmin, pmax, fn, lineno):
par = line.split(None, pmax)
par = self.check_par(par, pmin, pmax, fn, lineno)
return par
def get_par_nm(line, pmin, pmax, fn, lineno):
if pmax:
par = line.split(None, pmax)
else:
par = [line,]
for i in range(len(par)):
if par[i][0] == '#':
par[i:] = []
break
if len(par) < pmin:
warnings.warn_explicit("Too few parameters. At least %d parameters are required" % (pmin), UserWarning, fn, lineno)
return None
if len(par) > pmax:
nmpar = par[pmax]
else:
nmpar = ''
nmpars = {}
nmpar_first = re.compile(r'^\s*(?P<attr>[_A-Z][_A-Z0-9]*)\s*=\s*')
nmpar_next = re.compile(r'\s+(?P<attr>[_A-Z][_A-Z0-9]*)\s*=\s*')
nmpar_end = re.compile(r'\s*$')
result = nmpar_first.search(nmpar)
pos = 0
while result:
k = result.group('attr')
pos = result.end()
result = nmpar_next.search(nmpar, pos)
p1 = pos
if result:
p2 = result.start()
else:
p2 = nmpar_end.search(nmpar, pos).start()
v = nmpar[p1:p2]
nmpars[k] = v
if len(par) > pmax:
par[pmax] = nmpars
return par
f = open(fn, "r")
lineno = 0
is_import = False
directive = re.compile(r'^\s*#\.(?P<name>[A-Z_][A-Z_0-9]*)(\s+|$)')
cdirective = re.compile(r'^\s*##')
report = re.compile(r'^TABLE(?P<num>\d*)_(?P<type>HDR|BODY|FTR)$')
comment = re.compile(r'^\s*#[^.#]')
empty = re.compile(r'^\s*$')
ctx = None
name = ''
default_flags = 0x00
stack = []
while True:
if not f.closed:
line = f.readline()
lineno += 1
else:
line = None
if not line:
if not f.closed:
f.close()
if stack:
frec = stack.pop()
fn, f, lineno, is_import = frec['fn'], frec['f'], frec['lineno'], frec['is_import']
continue
else:
break
if comment.search(line): continue
result = directive.search(line)
if result: # directive
rep_result = report.search(result.group('name'))
if result.group('name') == 'END_OF_CNF':
f.close()
elif result.group('name') == 'OPT':
ctx = result.group('name')
par = get_par(line[result.end():], 0, -1, fn=fn, lineno=lineno)
if not par: continue
self.set_opt(par[0], par[1:], fn, lineno)
ctx = None
elif result.group('name') in ('PDU', 'REGISTER',
'MODULE', 'MODULE_IMPORT',
'OMIT_ASSIGNMENT', 'NO_OMIT_ASSGN',
'VIRTUAL_ASSGN', 'SET_TYPE', 'ASSIGN_VALUE_TO_TYPE',
'TYPE_RENAME', 'FIELD_RENAME', 'TF_RENAME', 'IMPORT_TAG',
'TYPE_ATTR', 'ETYPE_ATTR', 'FIELD_ATTR', 'EFIELD_ATTR',
'SYNTAX'):
ctx = result.group('name')
elif result.group('name') in ('OMIT_ALL_ASSIGNMENTS', 'OMIT_ASSIGNMENTS_EXCEPT',
'OMIT_ALL_TYPE_ASSIGNMENTS', 'OMIT_TYPE_ASSIGNMENTS_EXCEPT',
'OMIT_ALL_VALUE_ASSIGNMENTS', 'OMIT_VALUE_ASSIGNMENTS_EXCEPT'):
ctx = result.group('name')
key = '*'
if ctx in ('OMIT_ALL_TYPE_ASSIGNMENTS', 'OMIT_TYPE_ASSIGNMENTS_EXCEPT'):
key += 'T'
if ctx in ('OMIT_ALL_VALUE_ASSIGNMENTS', 'OMIT_VALUE_ASSIGNMENTS_EXCEPT'):
key += 'V'
par = get_par(line[result.end():], 0, 1, fn=fn, lineno=lineno)
if par:
key += '/' + par[0]
self.add_item('OMIT_ASSIGNMENT', key, omit=True, fn=fn, lineno=lineno)
if ctx in ('OMIT_ASSIGNMENTS_EXCEPT', 'OMIT_TYPE_ASSIGNMENTS_EXCEPT', 'OMIT_VALUE_ASSIGNMENTS_EXCEPT'):
ctx = 'NO_OMIT_ASSGN'
else:
ctx = None
elif result.group('name') in ('EXPORTS', 'MODULE_EXPORTS', 'USER_DEFINED', 'NO_EMIT'):
ctx = result.group('name')
default_flags = EF_TYPE|EF_VALS
if ctx == 'MODULE_EXPORTS':
ctx = 'EXPORTS'
default_flags |= EF_MODULE
if ctx == 'EXPORTS':
par = get_par(line[result.end():], 0, 5, fn=fn, lineno=lineno)
else:
par = get_par(line[result.end():], 0, 1, fn=fn, lineno=lineno)
if not par: continue
p = 1
if (par[0] == 'WITH_VALS'): default_flags |= EF_TYPE|EF_VALS
elif (par[0] == 'WITHOUT_VALS'): default_flags |= EF_TYPE; default_flags &= ~EF_TYPE
elif (par[0] == 'ONLY_VALS'): default_flags &= ~EF_TYPE; default_flags |= EF_VALS
elif (ctx == 'EXPORTS'): p = 0
else: warnings.warn_explicit("Unknown parameter value '%s'" % (par[0]), UserWarning, fn, lineno)
for i in range(p, len(par)):
if (par[i] == 'ONLY_ENUM'): default_flags &= ~(EF_TYPE|EF_VALS); default_flags |= EF_ENUM
elif (par[i] == 'WITH_ENUM'): default_flags |= EF_ENUM
elif (par[i] == 'VALS_WITH_TABLE'): default_flags |= EF_TABLE
elif (par[i] == 'WS_DLL'): default_flags |= EF_WS_DLL
elif (par[i] == 'EXTERN'): default_flags |= EF_EXTERN
elif (par[i] == 'NO_PROT_PREFIX'): default_flags |= EF_NO_PROT
else: warnings.warn_explicit("Unknown parameter value '%s'" % (par[i]), UserWarning, fn, lineno)
elif result.group('name') in ('MAKE_ENUM', 'MAKE_DEFINES'):
ctx = result.group('name')
default_flags = EF_ENUM
if ctx == 'MAKE_ENUM': default_flags |= EF_NO_PROT|EF_NO_TYPE
if ctx == 'MAKE_DEFINES': default_flags |= EF_DEFINE|EF_UCASE|EF_NO_TYPE
par = get_par(line[result.end():], 0, 3, fn=fn, lineno=lineno)
for i in range(0, len(par)):
if (par[i] == 'NO_PROT_PREFIX'): default_flags |= EF_NO_PROT
elif (par[i] == 'PROT_PREFIX'): default_flags &= ~ EF_NO_PROT
elif (par[i] == 'NO_TYPE_PREFIX'): default_flags |= EF_NO_TYPE
elif (par[i] == 'TYPE_PREFIX'): default_flags &= ~ EF_NO_TYPE
elif (par[i] == 'UPPER_CASE'): default_flags |= EF_UCASE
elif (par[i] == 'NO_UPPER_CASE'): default_flags &= ~EF_UCASE
else: warnings.warn_explicit("Unknown parameter value '%s'" % (par[i]), UserWarning, fn, lineno)
elif result.group('name') == 'USE_VALS_EXT':
ctx = result.group('name')
default_flags = 0xFF
elif result.group('name') == 'FN_HDR':
minp = 1
if (ctx in ('FN_PARS',)) and name: minp = 0
par = get_par(line[result.end():], minp, 1, fn=fn, lineno=lineno)
if (not par) and (minp > 0): continue
ctx = result.group('name')
if par: name = par[0]
elif result.group('name') == 'FN_FTR':
minp = 1
if (ctx in ('FN_PARS','FN_HDR')) and name: minp = 0
par = get_par(line[result.end():], minp, 1, fn=fn, lineno=lineno)
if (not par) and (minp > 0): continue
ctx = result.group('name')
if par: name = par[0]
elif result.group('name') == 'FN_BODY':
par = get_par_nm(line[result.end():], 1, 1, fn=fn, lineno=lineno)
if not par: continue
ctx = result.group('name')
name = par[0]
if len(par) > 1:
self.add_item('FN_PARS', name, pars=par[1], fn=fn, lineno=lineno)
elif result.group('name') == 'FN_PARS':
par = get_par_nm(line[result.end():], 0, 1, fn=fn, lineno=lineno)
ctx = result.group('name')
if not par:
name = None
elif len(par) == 1:
name = par[0]
self.add_item(ctx, name, pars={}, fn=fn, lineno=lineno)
elif len(par) > 1:
self.add_item(ctx, par[0], pars=par[1], fn=fn, lineno=lineno)
ctx = None
elif result.group('name') == 'CLASS':
par = get_par(line[result.end():], 1, 1, fn=fn, lineno=lineno)
if not par: continue
ctx = result.group('name')
name = par[0]
add_class_ident(name)
if not name.split('$')[-1].isupper():
warnings.warn_explicit("No lower-case letters shall be included in information object class name (%s)" % (name),
UserWarning, fn, lineno)
elif result.group('name') == 'ASSIGNED_OBJECT_IDENTIFIER':
par = get_par(line[result.end():], 1, 1, fn=fn, lineno=lineno)
if not par: continue
self.update_item('ASSIGNED_ID', 'OBJECT_IDENTIFIER', ids={par[0] : par[0]}, fn=fn, lineno=lineno)
elif rep_result: # Reports
num = rep_result.group('num')
type = rep_result.group('type')
if type == 'BODY':
par = get_par(line[result.end():], 1, 1, fn=fn, lineno=lineno)
if not par: continue
else:
par = get_par(line[result.end():], 0, 0, fn=fn, lineno=lineno)
rep = { 'type' : type, 'var' : None, 'text' : '', 'fn' : fn, 'lineno' : lineno }
if len(par) > 0:
rep['var'] = par[0]
self.report.setdefault(num, []).append(rep)
ctx = 'TABLE'
name = num
elif result.group('name') in ('INCLUDE', 'IMPORT') :
is_imp = result.group('name') == 'IMPORT'
par = get_par(line[result.end():], 1, 1, fn=fn, lineno=lineno)
if not par:
warnings.warn_explicit("%s requires parameter" % (result.group('name'),), UserWarning, fn, lineno)
continue
fname = par[0]
#print "Try include: %s" % (fname)
if (not os.path.exists(fname)):
fname = os.path.join(os.path.split(fn)[0], par[0])
#print "Try include: %s" % (fname)
i = 0
while not os.path.exists(fname) and (i < len(self.include_path)):
fname = os.path.join(self.include_path[i], par[0])
#print "Try include: %s" % (fname)
i += 1
if (not os.path.exists(fname)):
if is_imp:
continue # just ignore
else:
fname = par[0] # report error
fnew = open(fname, "r")
stack.append({'fn' : fn, 'f' : f, 'lineno' : lineno, 'is_import' : is_import})
fn, f, lineno, is_import = par[0], fnew, 0, is_imp
elif result.group('name') == 'END':
ctx = None
else:
warnings.warn_explicit("Unknown directive '%s'" % (result.group('name')), UserWarning, fn, lineno)
continue
if not ctx:
if not empty.match(line):
warnings.warn_explicit("Non-empty line in empty context", UserWarning, fn, lineno)
elif ctx == 'OPT':
if empty.match(line): continue
par = get_par(line, 1, -1, fn=fn, lineno=lineno)
if not par: continue
self.set_opt(par[0], par[1:], fn, lineno)
elif ctx in ('EXPORTS', 'USER_DEFINED', 'NO_EMIT'):
if empty.match(line): continue
if ctx == 'EXPORTS':
par = get_par(line, 1, 6, fn=fn, lineno=lineno)
else:
par = get_par(line, 1, 2, fn=fn, lineno=lineno)
if not par: continue
flags = default_flags
p = 2
if (len(par)>=2):
if (par[1] == 'WITH_VALS'): flags |= EF_TYPE|EF_VALS
elif (par[1] == 'WITHOUT_VALS'): flags |= EF_TYPE; flags &= ~EF_TYPE
elif (par[1] == 'ONLY_VALS'): flags &= ~EF_TYPE; flags |= EF_VALS
elif (ctx == 'EXPORTS'): p = 1
else: warnings.warn_explicit("Unknown parameter value '%s'" % (par[1]), UserWarning, fn, lineno)
for i in range(p, len(par)):
if (par[i] == 'ONLY_ENUM'): flags &= ~(EF_TYPE|EF_VALS); flags |= EF_ENUM
elif (par[i] == 'WITH_ENUM'): flags |= EF_ENUM
elif (par[i] == 'VALS_WITH_TABLE'): flags |= EF_TABLE
elif (par[i] == 'WS_DLL'): flags |= EF_WS_DLL
elif (par[i] == 'EXTERN'): flags |= EF_EXTERN
elif (par[i] == 'NO_PROT_PREFIX'): flags |= EF_NO_PROT
else: warnings.warn_explicit("Unknown parameter value '%s'" % (par[i]), UserWarning, fn, lineno)
self.add_item(ctx, par[0], flag=flags, fn=fn, lineno=lineno)
elif ctx in ('MAKE_ENUM', 'MAKE_DEFINES'):
if empty.match(line): continue
par = get_par(line, 1, 4, fn=fn, lineno=lineno)
if not par: continue
flags = default_flags
for i in range(1, len(par)):
if (par[i] == 'NO_PROT_PREFIX'): flags |= EF_NO_PROT
elif (par[i] == 'PROT_PREFIX'): flags &= ~ EF_NO_PROT
elif (par[i] == 'NO_TYPE_PREFIX'): flags |= EF_NO_TYPE
elif (par[i] == 'TYPE_PREFIX'): flags &= ~ EF_NO_TYPE
elif (par[i] == 'UPPER_CASE'): flags |= EF_UCASE
elif (par[i] == 'NO_UPPER_CASE'): flags &= ~EF_UCASE
else: warnings.warn_explicit("Unknown parameter value '%s'" % (par[i]), UserWarning, fn, lineno)
self.add_item('MAKE_ENUM', par[0], flag=flags, fn=fn, lineno=lineno)
elif ctx == 'USE_VALS_EXT':
if empty.match(line): continue
par = get_par(line, 1, 1, fn=fn, lineno=lineno)
if not par: continue
flags = default_flags
self.add_item('USE_VALS_EXT', par[0], flag=flags, fn=fn, lineno=lineno)
elif ctx == 'PDU':
if empty.match(line): continue
par = get_par(line, 1, 5, fn=fn, lineno=lineno)
if not par: continue
self.add_pdu(par[0:2], fn, lineno)
if (len(par)>=3):
self.add_register(par[0], par[2:5], fn, lineno)
elif ctx == 'SYNTAX':
if empty.match(line): continue
par = get_par(line, 1, 2, fn=fn, lineno=lineno)
if not par: continue
if not self.check_item('PDU', par[0]):
self.add_pdu(par[0:1], fn, lineno)
self.add_syntax(par, fn, lineno)
elif ctx == 'REGISTER':
if empty.match(line): continue
par = get_par(line, 3, 4, fn=fn, lineno=lineno)
if not par: continue
if not self.check_item('PDU', par[0]):
self.add_pdu(par[0:1], fn, lineno)
self.add_register(par[0], par[1:4], fn, lineno)
elif ctx in ('MODULE', 'MODULE_IMPORT'):
if empty.match(line): continue
par = get_par(line, 2, 2, fn=fn, lineno=lineno)
if not par: continue
self.add_item('MODULE', par[0], proto=par[1], fn=fn, lineno=lineno)
elif ctx == 'IMPORT_TAG':
if empty.match(line): continue
par = get_par(line, 3, 3, fn=fn, lineno=lineno)
if not par: continue
self.add_item(ctx, par[0], ttag=(par[1], par[2]), fn=fn, lineno=lineno)
elif ctx == 'OMIT_ASSIGNMENT':
if empty.match(line): continue
par = get_par(line, 1, 1, fn=fn, lineno=lineno)
if not par: continue
self.add_item(ctx, par[0], omit=True, fn=fn, lineno=lineno)
elif ctx == 'NO_OMIT_ASSGN':
if empty.match(line): continue
par = get_par(line, 1, 1, fn=fn, lineno=lineno)
if not par: continue
self.add_item(ctx, par[0], omit=False, fn=fn, lineno=lineno)
elif ctx == 'VIRTUAL_ASSGN':
if empty.match(line): continue
par = get_par(line, 2, -1, fn=fn, lineno=lineno)
if not par: continue
if (len(par[1].split('/')) > 1) and not self.check_item('SET_TYPE', par[1]):
self.add_item('SET_TYPE', par[1], type=par[0], fn=fn, lineno=lineno)
self.add_item('VIRTUAL_ASSGN', par[1], name=par[0], fn=fn, lineno=lineno)
for nm in par[2:]:
self.add_item('SET_TYPE', nm, type=par[0], fn=fn, lineno=lineno)
if not par[0][0].isupper():
warnings.warn_explicit("Virtual assignment should have uppercase name (%s)" % (par[0]),
UserWarning, fn, lineno)
elif ctx == 'SET_TYPE':
if empty.match(line): continue
par = get_par(line, 2, 2, fn=fn, lineno=lineno)
if not par: continue
if not self.check_item('VIRTUAL_ASSGN', par[0]):
self.add_item('SET_TYPE', par[0], type=par[1], fn=fn, lineno=lineno)
if not par[1][0].isupper():
warnings.warn_explicit("Set type should have uppercase name (%s)" % (par[1]),
UserWarning, fn, lineno)
elif ctx == 'ASSIGN_VALUE_TO_TYPE':
if empty.match(line): continue
par = get_par(line, 2, 2, fn=fn, lineno=lineno)
if not par: continue
self.add_item(ctx, par[0], name=par[1], fn=fn, lineno=lineno)
elif ctx == 'TYPE_RENAME':
if empty.match(line): continue
par = get_par(line, 2, 2, fn=fn, lineno=lineno)
if not par: continue
self.add_item('TYPE_RENAME', par[0], eth_name=par[1], fn=fn, lineno=lineno)
if not par[1][0].isupper():
warnings.warn_explicit("Type should be renamed to uppercase name (%s)" % (par[1]),
UserWarning, fn, lineno)
elif ctx == 'FIELD_RENAME':
if empty.match(line): continue
par = get_par(line, 2, 2, fn=fn, lineno=lineno)
if not par: continue
self.add_item('FIELD_RENAME', par[0], eth_name=par[1], fn=fn, lineno=lineno)
if not par[1][0].islower():
warnings.warn_explicit("Field should be renamed to lowercase name (%s)" % (par[1]),
UserWarning, fn, lineno)
elif ctx == 'TF_RENAME':
if empty.match(line): continue
par = get_par(line, 2, 2, fn=fn, lineno=lineno)
if not par: continue
tmpu = par[1][0].upper() + par[1][1:]
tmpl = par[1][0].lower() + par[1][1:]
self.add_item('TYPE_RENAME', par[0], eth_name=tmpu, fn=fn, lineno=lineno)
if not tmpu[0].isupper():
warnings.warn_explicit("Type should be renamed to uppercase name (%s)" % (par[1]),
UserWarning, fn, lineno)
self.add_item('FIELD_RENAME', par[0], eth_name=tmpl, fn=fn, lineno=lineno)
if not tmpl[0].islower():
warnings.warn_explicit("Field should be renamed to lowercase name (%s)" % (par[1]),
UserWarning, fn, lineno)
elif ctx in ('TYPE_ATTR', 'ETYPE_ATTR', 'FIELD_ATTR', 'EFIELD_ATTR'):
if empty.match(line): continue
par = get_par_nm(line, 1, 1, fn=fn, lineno=lineno)
if not par: continue
self.add_item(ctx, par[0], attr=par[1], fn=fn, lineno=lineno)
elif ctx == 'FN_PARS':
if empty.match(line): continue
if name:
par = get_par_nm(line, 0, 0, fn=fn, lineno=lineno)
else:
par = get_par_nm(line, 1, 1, fn=fn, lineno=lineno)
if not par: continue
if name:
self.update_item(ctx, name, pars=par[0], fn=fn, lineno=lineno)
else:
self.add_item(ctx, par[0], pars=par[1], fn=fn, lineno=lineno)
elif ctx in ('FN_HDR', 'FN_FTR', 'FN_BODY'):
result = cdirective.search(line)
if result: # directive
line = '#' + line[result.end():]
self.add_fn_line(name, ctx, line, fn=fn, lineno=lineno)
elif ctx == 'CLASS':
if empty.match(line): continue
par = get_par(line, 1, 3, fn=fn, lineno=lineno)
if not par: continue
if not set_type_to_class(name, par[0], par[1:]):
warnings.warn_explicit("Could not set type of class member %s.&%s to %s" % (name, par[0], par[1]),
UserWarning, fn, lineno)
elif ctx == 'TABLE':
self.report[name][-1]['text'] += line
def set_opt(self, opt, par, fn, lineno):
#print "set_opt: %s, %s" % (opt, par)
if opt in ("-I",):
par = self.check_par(par, 1, 1, fn, lineno)
if not par: return
self.include_path.append(relpath(par[0]))
elif opt in ("-b", "BER", "CER", "DER"):
par = self.check_par(par, 0, 0, fn, lineno)
self.ectx.encoding = 'ber'
elif opt in ("PER",):
par = self.check_par(par, 0, 0, fn, lineno)
self.ectx.encoding = 'per'
elif opt in ("-p", "PROTO"):
par = self.check_par(par, 1, 1, fn, lineno)
if not par: return
self.ectx.proto_opt = par[0]
self.ectx.merge_modules = True
elif opt in ("ALIGNED",):
par = self.check_par(par, 0, 0, fn, lineno)
self.ectx.aligned = True
elif opt in ("-u", "UNALIGNED"):
par = self.check_par(par, 0, 0, fn, lineno)
self.ectx.aligned = False
elif opt in ("-d",):
par = self.check_par(par, 1, 1, fn, lineno)
if not par: return
self.ectx.dbgopt = par[0]
elif opt in ("-e",):
par = self.check_par(par, 0, 0, fn, lineno)
self.ectx.expcnf = True
elif opt in ("-S",):
par = self.check_par(par, 0, 0, fn, lineno)
self.ectx.merge_modules = True
elif opt in ("GROUP_BY_PROT",):
par = self.check_par(par, 0, 0, fn, lineno)
self.ectx.group_by_prot = True
elif opt in ("-o",):
par = self.check_par(par, 1, 1, fn, lineno)
if not par: return
self.ectx.outnm_opt = par[0]
elif opt in ("-O",):
par = self.check_par(par, 1, 1, fn, lineno)
if not par: return
self.ectx.output.outdir = relpath(par[0])
elif opt in ("-s",):
par = self.check_par(par, 1, 1, fn, lineno)
if not par: return
self.ectx.output.single_file = relpath(par[0])
elif opt in ("-k",):
par = self.check_par(par, 0, 0, fn, lineno)
self.ectx.output.keep = True
elif opt in ("-L",):
par = self.check_par(par, 0, 0, fn, lineno)
self.suppress_line = True
elif opt in ("EMBEDDED_PDV_CB",):
par = self.check_par(par, 1, 1, fn, lineno)
if not par: return
self.ectx.default_embedded_pdv_cb = par[0]
elif opt in ("EXTERNAL_TYPE_CB",):
par = self.check_par(par, 1, 1, fn, lineno)
if not par: return
self.ectx.default_external_type_cb = par[0]
elif opt in ("-r",):
par = self.check_par(par, 1, 1, fn, lineno)
if not par: return
self.ectx.remove_prefix = par[0]
else:
warnings.warn_explicit("Unknown option %s" % (opt),
UserWarning, fn, lineno)
def dbg_print(self):
print("\n# Conformance values")
print("%-15s %-4s %-15s %-20s %s" % ("File", "Line", "Table", "Key", "Value"))
print("-" * 100)
tbls = sorted(self.table.keys())
for t in tbls:
keys = sorted(self.table[t].keys())
for k in keys:
print("%-15s %4s %-15s %-20s %s" % (
self.table[t][k]['fn'], self.table[t][k]['lineno'], t, k, str(self.table[t][k][self.tblcfg[t]['val_nm']])))
def unused_report(self):
tbls = sorted(self.table.keys())
for t in tbls:
if not self.tblcfg[t]['chk_use']: continue
keys = sorted(self.table[t].keys())
for k in keys:
if not self.table[t][k]['used']:
warnings.warn_explicit("Unused %s for %s" % (t, k),
UserWarning, self.table[t][k]['fn'], self.table[t][k]['lineno'])
fnms = list(self.fn.keys())
fnms.sort()
for f in fnms:
keys = sorted(self.fn[f].keys())
for k in keys:
if not self.fn[f][k]: continue
if not self.fn[f][k]['used']:
warnings.warn_explicit("Unused %s for %s" % (k, f),
UserWarning, self.fn[f][k]['fn'], self.fn[f][k]['lineno'])
#--- EthOut -------------------------------------------------------------------
class EthOut:
def __init__(self):
self.ectx = None
self.outnm = None
self.outdir = '.'
self.single_file = None
self.created_files = {}
self.created_files_ord = []
self.keep = False
def outcomment(self, ln, comment=None):
if comment:
return '%s %s\n' % (comment, ln)
else:
return '/* %-74s */\n' % (ln)
def created_file_add(self, name, keep_anyway):
name = os.path.normcase(os.path.abspath(name))
if name not in self.created_files:
self.created_files_ord.append(name)
self.created_files[name] = keep_anyway
else:
self.created_files[name] = self.created_files[name] or keep_anyway
def created_file_exists(self, name):
name = os.path.normcase(os.path.abspath(name))
return name in self.created_files
#--- output_fname -------------------------------------------------------
def output_fname(self, ftype, ext='c'):
fn = ''
if not ext in ('cnf',):
fn += 'packet-'
fn += self.outnm
if (ftype):
fn += '-' + ftype
fn += '.' + ext
return fn
#--- file_open -------------------------------------------------------
def file_open(self, ftype, ext='c'):
fn = self.output_fname(ftype, ext=ext)
if self.created_file_exists(fn):
fx = open(fn, 'a')
else:
fx = open(fn, 'w')
comment = None
if ext in ('cnf',):
comment = '#'
fx.write(self.fhdr(fn, comment = comment))
else:
if (not self.single_file and not self.created_file_exists(fn)):
fx.write(self.fhdr(fn))
if not self.ectx.merge_modules:
fx.write('\n')
mstr = "--- "
if self.ectx.groups():
mstr += "Module"
if (len(self.ectx.modules) > 1):
mstr += "s"
for (m, p) in self.ectx.modules:
mstr += " %s" % (m)
else:
mstr += "Module %s" % (self.ectx.Module())
mstr += " --- --- ---"
fx.write(self.outcomment(mstr, comment))
fx.write('\n')
return fx
#--- file_close -------------------------------------------------------
def file_close(self, fx, discard=False, keep_anyway=False):
fx.close()
if discard and not self.created_file_exists(fx.name):
os.unlink(fx.name)
else:
self.created_file_add(fx.name, keep_anyway)
#--- fhdr -------------------------------------------------------
def fhdr(self, fn, comment=None):
out = ''
out += self.outcomment('Do not modify this file. Changes will be overwritten.', comment)
out += self.outcomment('Generated automatically by the ASN.1 to Wireshark dissector compiler', comment)
out += self.outcomment(os.path.basename(fn), comment)
out += self.outcomment(' '.join(['asn2wrs.py'] + sys.argv[1:]), comment)
out += '\n'
# Make Windows path separator look like Unix path separator
out = out.replace('\\', '/')
# Change absolute paths and relative paths generated outside
# source directory to paths relative to asn1/<proto> subdir.
out = re.sub(r'(\s)[./A-Z]\S*/dissectors\b', r'\1../..', out)
out = re.sub(r'(\s)[./A-Z]\S*/asn1/\S*?([\s/])', r'\1.\2', out)
return out
#--- dbg_print -------------------------------------------------------
def dbg_print(self):
print("\n# Output files")
print("\n".join(self.created_files_ord))
print("\n")
#--- make_single_file -------------------------------------------------------
def make_single_file(self):
if (not self.single_file): return
in_nm = self.single_file + '.c'
out_nm = os.path.join(self.outdir, self.output_fname(''))
self.do_include(out_nm, in_nm)
in_nm = self.single_file + '.h'
if (os.path.exists(in_nm)):
out_nm = os.path.join(self.outdir, self.output_fname('', ext='h'))
self.do_include(out_nm, in_nm)
if (not self.keep):
for fn in self.created_files_ord:
if not self.created_files[fn]:
os.unlink(fn)
#--- do_include -------------------------------------------------------
def do_include(self, out_nm, in_nm):
def check_file(fn, fnlist):
fnfull = os.path.normcase(os.path.abspath(fn))
if (fnfull in fnlist and os.path.exists(fnfull)):
return os.path.normpath(fn)
return None
fin = open(in_nm, "r")
fout = open(out_nm, "w")
fout.write(self.fhdr(out_nm))
fout.write('/* Input file: ' + os.path.basename(in_nm) +' */\n')
fout.write('\n')
fout.write('#line %u "%s"\n' % (1, rel_dissector_path(in_nm)))
include = re.compile(r'^\s*#\s*include\s+[<"](?P<fname>[^>"]+)[>"]', re.IGNORECASE)
cont_linenum = 0;
while (True):
cont_linenum = cont_linenum + 1;
line = fin.readline()
if (line == ''): break
ifile = None
result = include.search(line)
#if (result): print os.path.normcase(os.path.abspath(result.group('fname')))
if (result):
ifile = check_file(os.path.join(os.path.split(in_nm)[0], result.group('fname')), self.created_files)
if (not ifile):
ifile = check_file(os.path.join(self.outdir, result.group('fname')), self.created_files)
if (not ifile):
ifile = check_file(result.group('fname'), self.created_files)
if (ifile):
fout.write('\n')
fout.write('/*--- Included file: ' + ifile + ' ---*/\n')
fout.write('#line %u "%s"\n' % (1, rel_dissector_path(ifile)))
finc = open(ifile, "r")
fout.write(finc.read())
fout.write('\n')
fout.write('/*--- End of included file: ' + ifile + ' ---*/\n')
fout.write('#line %u "%s"\n' % (cont_linenum+1, rel_dissector_path(in_nm)) )
finc.close()
else:
fout.write(line)
fout.close()
fin.close()
#--- Node ---------------------------------------------------------------------
class Node:
def __init__(self,*args, **kw):
if len (args) == 0:
self.type = self.__class__.__name__
else:
assert (len(args) == 1)
self.type = args[0]
self.__dict__.update (kw)
def str_child (self, key, child, depth):
indent = " " * (2 * depth)
keystr = indent + key + ": "
if key == 'type': # already processed in str_depth
return ""
if isinstance (child, Node): # ugh
return keystr + "\n" + child.str_depth (depth+1)
if isinstance(child, type ([])):
l = []
for x in child:
if isinstance (x, Node):
l.append (x.str_depth (depth+1))
else:
l.append (indent + " " + str(x) + "\n")
return keystr + "[\n" + ''.join(l) + indent + "]\n"
else:
return keystr + str (child) + "\n"
def str_depth (self, depth): # ugh
indent = " " * (2 * depth)
l = ["%s%s" % (indent, self.type)]
l.append ("".join ([self.str_child (k_v[0], k_v[1], depth + 1) for k_v in list(self.__dict__.items ())]))
return "\n".join (l)
def __repr__(self):
return "\n" + self.str_depth (0)
def to_python (self, ctx):
return self.str_depth (ctx.indent_lev)
def eth_reg(self, ident, ectx):
pass
def fld_obj_repr(self, ectx):
return "/* TO DO %s */" % (str(self))
#--- ValueAssignment -------------------------------------------------------------
class ValueAssignment (Node):
def __init__(self,*args, **kw) :
Node.__init__ (self,*args, **kw)
def eth_reg(self, ident, ectx):
if ectx.conform.omit_assignment('V', self.ident, ectx.Module()): return # Assignment to omit
ectx.eth_reg_vassign(self)
ectx.eth_reg_value(self.ident, self.typ, self.val)
#--- ObjectAssignment -------------------------------------------------------------
class ObjectAssignment (Node):
def __init__(self,*args, **kw) :
Node.__init__ (self,*args, **kw)
def __eq__(self, other):
if self.cls != other.cls:
return False
if len(self.val) != len(other.val):
return False
for f in (list(self.val.keys())):
if f not in other.val:
return False
if isinstance(self.val[f], Node) and isinstance(other.val[f], Node):
if not self.val[f].fld_obj_eq(other.val[f]):
return False
else:
if str(self.val[f]) != str(other.val[f]):
return False
return True
def eth_reg(self, ident, ectx):
def make_virtual_type(cls, field, prefix):
if isinstance(self.val, str): return
if field in self.val and not isinstance(self.val[field], Type_Ref):
vnm = prefix + '-' + self.ident
virtual_tr = Type_Ref(val = vnm)
t = self.val[field]
self.val[field] = virtual_tr
ectx.eth_reg_assign(vnm, t, virt=True)
ectx.eth_reg_type(vnm, t)
t.eth_reg_sub(vnm, ectx)
if field in self.val and ectx.conform.check_item('PDU', cls + '.' + field):
ectx.eth_reg_field(self.val[field].val, self.val[field].val, impl=self.val[field].HasImplicitTag(ectx), pdu=ectx.conform.use_item('PDU', cls + '.' + field))
return
# end of make_virtual_type()
if ectx.conform.omit_assignment('V', self.ident, ectx.Module()): return # Assignment to omit
self.module = ectx.Module()
ectx.eth_reg_oassign(self)
if (self.cls == 'TYPE-IDENTIFIER') or (self.cls == 'ABSTRACT-SYNTAX'):
make_virtual_type(self.cls, '&Type', 'TYPE')
if (self.cls == 'OPERATION'):
make_virtual_type(self.cls, '&ArgumentType', 'ARG')
make_virtual_type(self.cls, '&ResultType', 'RES')
if (self.cls == 'ERROR'):
make_virtual_type(self.cls, '&ParameterType', 'PAR')
#--- Type ---------------------------------------------------------------------
class Type (Node):
def __init__(self,*args, **kw) :
self.name = None
self.constr = None
self.tags = []
self.named_list = None
Node.__init__ (self,*args, **kw)
def IsNamed(self):
if self.name is None :
return False
else:
return True
def HasConstraint(self):
if self.constr is None :
return False
else :
return True
def HasSizeConstraint(self):
return self.HasConstraint() and self.constr.IsSize()
def HasValueConstraint(self):
return self.HasConstraint() and self.constr.IsValue()
def HasPermAlph(self):
return self.HasConstraint() and self.constr.IsPermAlph()
def HasContentsConstraint(self):
return self.HasConstraint() and self.constr.IsContents()
def HasOwnTag(self):
return len(self.tags) > 0
def HasImplicitTag(self, ectx):
return (self.HasOwnTag() and self.tags[0].IsImplicit(ectx))
def IndetermTag(self, ectx):
return False
def AddTag(self, tag):
self.tags[0:0] = [tag]
def GetTag(self, ectx):
#print "GetTag(%s)\n" % self.name;
if (self.HasOwnTag()):
return self.tags[0].GetTag(ectx)
else:
return self.GetTTag(ectx)
def GetTTag(self, ectx):
print("#Unhandled GetTTag() in %s" % (self.type))
print(self.str_depth(1))
return ('BER_CLASS_unknown', 'TAG_unknown')
def SetName(self, name):
self.name = name
def AddConstraint(self, constr):
if not self.HasConstraint():
self.constr = constr
else:
self.constr = Constraint(type = 'Intersection', subtype = [self.constr, constr])
def eth_tname(self):
return '#' + self.type + '_' + str(id(self))
def eth_ftype(self, ectx):
return ('FT_NONE', 'BASE_NONE')
def eth_strings(self):
return 'NULL'
def eth_omit_field(self):
return False
def eth_need_tree(self):
return False
def eth_has_vals(self):
return False
def eth_has_enum(self, tname, ectx):
return self.eth_has_vals() and (ectx.eth_type[tname]['enum'] & EF_ENUM)
def eth_need_pdu(self, ectx):
return None
def eth_named_bits(self):
return None
def eth_reg_sub(self, ident, ectx):
pass
def get_components(self, ectx):
print("#Unhandled get_components() in %s" % (self.type))
print(self.str_depth(1))
return []
def sel_req(self, sel, ectx):
print("#Selection '%s' required for non-CHOICE type %s" % (sel, self.type))
print(self.str_depth(1))
def fld_obj_eq(self, other):
return isinstance(other, Type) and (self.eth_tname() == other.eth_tname())
def eth_reg(self, ident, ectx, tstrip=0, tagflag=False, selflag=False, idx='', parent=None):
#print "eth_reg(): %s, ident=%s, tstrip=%d, tagflag=%s, selflag=%s, parent=%s" %(self.type, ident, tstrip, str(tagflag), str(selflag), str(parent))
#print " ", self
if (ectx.NeedTags() and (len(self.tags) > tstrip)):
tagged_type = self
for i in range(len(self.tags)-1, tstrip-1, -1):
tagged_type = TaggedType(val=tagged_type, tstrip=i)
tagged_type.AddTag(self.tags[i])
if not tagflag: # 1st tagged level
if self.IsNamed() and not selflag:
tagged_type.SetName(self.name)
tagged_type.eth_reg(ident, ectx, tstrip=1, tagflag=tagflag, idx=idx, parent=parent)
return
nm = ''
if ident and self.IsNamed() and not tagflag and not selflag:
nm = ident + '/' + self.name
elif ident:
nm = ident
elif self.IsNamed():
nm = self.name
if not ident and ectx.conform.omit_assignment('T', nm, ectx.Module()): return # Assignment to omit
if not ident: # Assignment
ectx.eth_reg_assign(nm, self)
if self.type == 'Type_Ref' and not self.tr_need_own_fn(ectx):
ectx.eth_reg_type(nm, self)
virtual_tr = Type_Ref(val=ectx.conform.use_item('SET_TYPE', nm))
if (self.type == 'Type_Ref') or ectx.conform.check_item('SET_TYPE', nm):
if ident and (ectx.conform.check_item('TYPE_RENAME', nm) or ectx.conform.get_fn_presence(nm) or selflag):
if ectx.conform.check_item('SET_TYPE', nm):
ectx.eth_reg_type(nm, virtual_tr) # dummy Type Reference
else:
ectx.eth_reg_type(nm, self) # new type
trnm = nm
elif ectx.conform.check_item('SET_TYPE', nm):
trnm = ectx.conform.use_item('SET_TYPE', nm)
elif (self.type == 'Type_Ref') and self.tr_need_own_fn(ectx):
ectx.eth_reg_type(nm, self) # need own function, e.g. for constraints
trnm = nm
else:
trnm = self.val
else:
ectx.eth_reg_type(nm, self)
trnm = nm
if ectx.conform.check_item('VIRTUAL_ASSGN', nm):
vnm = ectx.conform.use_item('VIRTUAL_ASSGN', nm)
ectx.eth_reg_assign(vnm, self, virt=True)
ectx.eth_reg_type(vnm, self)
self.eth_reg_sub(vnm, ectx)
if parent and (ectx.type[parent]['val'].type == 'TaggedType'):
ectx.type[parent]['val'].eth_set_val_name(parent, trnm, ectx)
if ident and not tagflag and not self.eth_omit_field():
ectx.eth_reg_field(nm, trnm, idx=idx, parent=parent, impl=self.HasImplicitTag(ectx))
if ectx.conform.check_item('SET_TYPE', nm):
virtual_tr.eth_reg_sub(nm, ectx)
else:
self.eth_reg_sub(nm, ectx)
def eth_get_size_constr(self, ectx):
(minv, maxv, ext) = ('MIN', 'MAX', False)
if self.HasSizeConstraint():
if self.constr.IsSize():
(minv, maxv, ext) = self.constr.GetSize(ectx)
if (self.constr.type == 'Intersection'):
if self.constr.subtype[0].IsSize():
(minv, maxv, ext) = self.constr.subtype[0].GetSize(ectx)
elif self.constr.subtype[1].IsSize():
(minv, maxv, ext) = self.constr.subtype[1].GetSize(ectx)
if minv == 'MIN': minv = 'NO_BOUND'
if maxv == 'MAX': maxv = 'NO_BOUND'
if (ext): ext = 'TRUE'
else: ext = 'FALSE'
return (minv, maxv, ext)
def eth_get_value_constr(self, ectx):
(minv, maxv, ext) = ('MIN', 'MAX', False)
if self.HasValueConstraint():
(minv, maxv, ext) = self.constr.GetValue(ectx)
if minv == 'MIN': minv = 'NO_BOUND'
if maxv == 'MAX': maxv = 'NO_BOUND'
if str(minv).isdigit():
minv += 'U'
elif (str(minv)[0] == "-") and str(minv)[1:].isdigit():
if (int(minv) == -(2**31)):
minv = "G_MININT32"
elif (int(minv) < -(2**31)):
minv = "G_GINT64_CONSTANT(%s)" % (str(minv))
if str(maxv).isdigit():
if (int(maxv) >= 2**32):
maxv = "G_GUINT64_CONSTANT(%s)" % (str(maxv))
else:
maxv += 'U'
if (ext): ext = 'TRUE'
else: ext = 'FALSE'
return (minv, maxv, ext)
def eth_get_alphabet_constr(self, ectx):
(alph, alphlen) = ('NULL', '0')
if self.HasPermAlph():
alph = self.constr.GetPermAlph(ectx)
if not alph:
alph = 'NULL'
if (alph != 'NULL'):
if (((alph[0] + alph[-1]) == '""') and (not alph.count('"', 1, -1))):
alphlen = str(len(alph) - 2)
else:
alphlen = 'strlen(%s)' % (alph)
return (alph, alphlen)
def eth_type_vals(self, tname, ectx):
if self.eth_has_vals():
print("#Unhandled eth_type_vals('%s') in %s" % (tname, self.type))
print(self.str_depth(1))
return ''
def eth_type_enum(self, tname, ectx):
if self.eth_has_enum(tname, ectx):
print("#Unhandled eth_type_enum('%s') in %s" % (tname, self.type))
print(self.str_depth(1))
return ''
def eth_type_default_table(self, ectx, tname):
return ''
def eth_type_default_body(self, ectx):
print("#Unhandled eth_type_default_body() in %s" % (self.type))
print(self.str_depth(1))
return ''
def eth_type_default_pars(self, ectx, tname):
pars = {
'TNAME' : tname,
'ER' : ectx.encp(),
'FN_VARIANT' : '',
'TREE' : 'tree',
'TVB' : 'tvb',
'OFFSET' : 'offset',
'ACTX' : 'actx',
'HF_INDEX' : 'hf_index',
'VAL_PTR' : 'NULL',
'IMPLICIT_TAG' : 'implicit_tag',
}
if (ectx.eth_type[tname]['tree']):
pars['ETT_INDEX'] = ectx.eth_type[tname]['tree']
if (ectx.merge_modules):
pars['PROTOP'] = ''
else:
pars['PROTOP'] = ectx.eth_type[tname]['proto'] + '_'
return pars
def eth_type_fn(self, proto, tname, ectx):
body = self.eth_type_default_body(ectx, tname)
pars = self.eth_type_default_pars(ectx, tname)
if ectx.conform.check_item('FN_PARS', tname):
pars.update(ectx.conform.use_item('FN_PARS', tname))
elif ectx.conform.check_item('FN_PARS', ectx.eth_type[tname]['ref'][0]):
pars.update(ectx.conform.use_item('FN_PARS', ectx.eth_type[tname]['ref'][0]))
pars['DEFAULT_BODY'] = body
for i in range(4):
for k in list(pars.keys()):
try:
pars[k] = pars[k] % pars
except (ValueError,TypeError):
raise sys.exc_info()[0]("%s\n%s" % (str(pars), sys.exc_info()[1]))
out = '\n'
out += self.eth_type_default_table(ectx, tname) % pars
out += ectx.eth_type_fn_hdr(tname)
out += ectx.eth_type_fn_body(tname, body, pars=pars)
out += ectx.eth_type_fn_ftr(tname)
return out
#--- Value --------------------------------------------------------------------
class Value (Node):
def __init__(self,*args, **kw) :
self.name = None
Node.__init__ (self,*args, **kw)
def SetName(self, name) :
self.name = name
def to_str(self, ectx):
return str(self.val)
def get_dep(self):
return None
def fld_obj_repr(self, ectx):
return self.to_str(ectx)
#--- Value_Ref -----------------------------------------------------------------
class Value_Ref (Value):
def to_str(self, ectx):
return asn2c(self.val)
#--- ObjectClass ---------------------------------------------------------------------
class ObjectClass (Node):
def __init__(self,*args, **kw) :
self.name = None
Node.__init__ (self,*args, **kw)
def SetName(self, name):
self.name = name
add_class_ident(self.name)
def eth_reg(self, ident, ectx):
if ectx.conform.omit_assignment('C', self.name, ectx.Module()): return # Assignment to omit
ectx.eth_reg_objectclass(self.name, self)
#--- Class_Ref -----------------------------------------------------------------
class Class_Ref (ObjectClass):
pass
#--- ObjectClassDefn ---------------------------------------------------------------------
class ObjectClassDefn (ObjectClass):
def reg_types(self):
for fld in self.fields:
repr = fld.fld_repr()
set_type_to_class(self.name, repr[0], repr[1:])
#--- Tag ---------------------------------------------------------------
class Tag (Node):
def to_python (self, ctx):
return 'asn1.TYPE(%s,%s)' % (mk_tag_str (ctx, self.tag.cls,
self.tag_typ,
self.tag.num),
self.typ.to_python (ctx))
def IsImplicit(self, ectx):
return ((self.mode == 'IMPLICIT') or ((self.mode == 'default') and (ectx.tag_def != 'EXPLICIT')))
def GetTag(self, ectx):
tc = ''
if (self.cls == 'UNIVERSAL'): tc = 'BER_CLASS_UNI'
elif (self.cls == 'APPLICATION'): tc = 'BER_CLASS_APP'
elif (self.cls == 'CONTEXT'): tc = 'BER_CLASS_CON'
elif (self.cls == 'PRIVATE'): tc = 'BER_CLASS_PRI'
return (tc, self.num)
def eth_tname(self):
n = ''
if (self.cls == 'UNIVERSAL'): n = 'U'
elif (self.cls == 'APPLICATION'): n = 'A'
elif (self.cls == 'CONTEXT'): n = 'C'
elif (self.cls == 'PRIVATE'): n = 'P'
return n + str(self.num)
#--- Constraint ---------------------------------------------------------------
constr_cnt = 0
class Constraint (Node):
def to_python (self, ctx):
print("Ignoring constraint:", self.type)
return self.subtype.typ.to_python (ctx)
def __str__ (self):
return "Constraint: type=%s, subtype=%s" % (self.type, self.subtype)
def eth_tname(self):
return '#' + self.type + '_' + str(id(self))
def IsSize(self):
return (self.type == 'Size' and self.subtype.IsValue()) \
or (self.type == 'Intersection' and (self.subtype[0].IsSize() or self.subtype[1].IsSize())) \
def GetSize(self, ectx):
(minv, maxv, ext) = ('MIN', 'MAX', False)
if self.IsSize():
if self.type == 'Size':
(minv, maxv, ext) = self.subtype.GetValue(ectx)
elif self.type == 'Intersection':
if self.subtype[0].IsSize() and not self.subtype[1].IsSize():
(minv, maxv, ext) = self.subtype[0].GetSize(ectx)
elif not self.subtype[0].IsSize() and self.subtype[1].IsSize():
(minv, maxv, ext) = self.subtype[1].GetSize(ectx)
return (minv, maxv, ext)
def IsValue(self):
return self.type == 'SingleValue' \
or self.type == 'ValueRange' \
or (self.type == 'Intersection' and (self.subtype[0].IsValue() or self.subtype[1].IsValue())) \
or (self.type == 'Union' and (self.subtype[0].IsValue() and self.subtype[1].IsValue()))
def GetValue(self, ectx):
(minv, maxv, ext) = ('MIN', 'MAX', False)
if self.IsValue():
if self.type == 'SingleValue':
minv = ectx.value_get_eth(self.subtype)
maxv = ectx.value_get_eth(self.subtype)
ext = hasattr(self, 'ext') and self.ext
elif self.type == 'ValueRange':
minv = ectx.value_get_eth(self.subtype[0])
maxv = ectx.value_get_eth(self.subtype[1])
ext = hasattr(self, 'ext') and self.ext
elif self.type == 'Intersection':
if self.subtype[0].IsValue() and not self.subtype[1].IsValue():
(minv, maxv, ext) = self.subtype[0].GetValue(ectx)
elif not self.subtype[0].IsValue() and self.subtype[1].IsValue():
(minv, maxv, ext) = self.subtype[1].GetValue(ectx)
elif self.subtype[0].IsValue() and self.subtype[1].IsValue():
v0 = self.subtype[0].GetValue(ectx)
v1 = self.subtype[1].GetValue(ectx)
(minv, maxv, ext) = (ectx.value_max(v0[0],v1[0]), ectx.value_min(v0[1],v1[1]), v0[2] and v1[2])
elif self.type == 'Union':
if self.subtype[0].IsValue() and self.subtype[1].IsValue():
v0 = self.subtype[0].GetValue(ectx)
v1 = self.subtype[1].GetValue(ectx)
(minv, maxv, ext) = (ectx.value_min(v0[0],v1[0]), ectx.value_max(v0[1],v1[1]), v0[2] or v1[2])
return (minv, maxv, ext)
def IsAlphabet(self):
return self.type == 'SingleValue' \
or self.type == 'ValueRange' \
or (self.type == 'Intersection' and (self.subtype[0].IsAlphabet() or self.subtype[1].IsAlphabet())) \
or (self.type == 'Union' and (self.subtype[0].IsAlphabet() and self.subtype[1].IsAlphabet()))
def GetAlphabet(self, ectx):
alph = None
if self.IsAlphabet():
if self.type == 'SingleValue':
alph = ectx.value_get_eth(self.subtype)
elif self.type == 'ValueRange':
if ((len(self.subtype[0]) == 3) and ((self.subtype[0][0] + self.subtype[0][-1]) == '""') \
and (len(self.subtype[1]) == 3) and ((self.subtype[1][0] + self.subtype[1][-1]) == '""')):
alph = '"'
for c in range(ord(self.subtype[0][1]), ord(self.subtype[1][1]) + 1):
alph += chr(c)
alph += '"'
elif self.type == 'Union':
if self.subtype[0].IsAlphabet() and self.subtype[1].IsAlphabet():
a0 = self.subtype[0].GetAlphabet(ectx)
a1 = self.subtype[1].GetAlphabet(ectx)
if (((a0[0] + a0[-1]) == '""') and not a0.count('"', 1, -1) \
and ((a1[0] + a1[-1]) == '""') and not a1.count('"', 1, -1)):
alph = '"' + a0[1:-1] + a1[1:-1] + '"'
else:
alph = a0 + ' ' + a1
return alph
def IsPermAlph(self):
return self.type == 'From' and self.subtype.IsAlphabet() \
or (self.type == 'Intersection' and (self.subtype[0].IsPermAlph() or self.subtype[1].IsPermAlph())) \
def GetPermAlph(self, ectx):
alph = None
if self.IsPermAlph():
if self.type == 'From':
alph = self.subtype.GetAlphabet(ectx)
elif self.type == 'Intersection':
if self.subtype[0].IsPermAlph() and not self.subtype[1].IsPermAlph():
alph = self.subtype[0].GetPermAlph(ectx)
elif not self.subtype[0].IsPermAlph() and self.subtype[1].IsPermAlph():
alph = self.subtype[1].GetPermAlph(ectx)
return alph
def IsContents(self):
return self.type == 'Contents' \
or (self.type == 'Intersection' and (self.subtype[0].IsContents() or self.subtype[1].IsContents())) \
def GetContents(self, ectx):
contents = None
if self.IsContents():
if self.type == 'Contents':
if self.subtype.type == 'Type_Ref':
contents = self.subtype.val
elif self.type == 'Intersection':
if self.subtype[0].IsContents() and not self.subtype[1].IsContents():
contents = self.subtype[0].GetContents(ectx)
elif not self.subtype[0].IsContents() and self.subtype[1].IsContents():
contents = self.subtype[1].GetContents(ectx)
return contents
def IsNegativ(self):
def is_neg(sval):
return isinstance(sval, str) and (sval[0] == '-')
if self.type == 'SingleValue':
return is_neg(self.subtype)
elif self.type == 'ValueRange':
if self.subtype[0] == 'MIN': return True
return is_neg(self.subtype[0])
return False
def eth_constrname(self):
def int2str(val):
if isinstance(val, Value_Ref):
return asn2c(val.val)
try:
if (int(val) < 0):
return 'M' + str(-int(val))
else:
return str(int(val))
except (ValueError, TypeError):
return asn2c(str(val))
ext = ''
if hasattr(self, 'ext') and self.ext:
ext = '_'
if self.type == 'SingleValue':
return int2str(self.subtype) + ext
elif self.type == 'ValueRange':
return int2str(self.subtype[0]) + '_' + int2str(self.subtype[1]) + ext
elif self.type == 'Size':
return 'SIZE_' + self.subtype.eth_constrname() + ext
else:
if (not hasattr(self, 'constr_num')):
global constr_cnt
constr_cnt += 1
self.constr_num = constr_cnt
return 'CONSTR%03d%s' % (self.constr_num, ext)
def Needs64b(self, ectx):
(minv, maxv, ext) = self.GetValue(ectx)
if (str(minv).isdigit() or ((str(minv)[0] == "-") and str(minv)[1:].isdigit())) \
and str(maxv).isdigit() and (abs(int(maxv) - int(minv)) >= 2**32):
return True
return False
class Module (Node):
def to_python (self, ctx):
ctx.tag_def = self.tag_def.dfl_tag
return """#%s
%s""" % (self.ident, self.body.to_python (ctx))
def get_name(self):
return self.ident.val
def get_proto(self, ectx):
if (ectx.proto):
prot = ectx.proto
else:
prot = ectx.conform.use_item('MODULE', self.get_name(), val_dflt=self.get_name())
return prot
def to_eth(self, ectx):
ectx.tags_def = 'EXPLICIT' # default = explicit
ectx.proto = self.get_proto(ectx)
ectx.tag_def = self.tag_def.dfl_tag
ectx.eth_reg_module(self)
self.body.to_eth(ectx)
class Module_Body (Node):
def to_python (self, ctx):
# XXX handle exports, imports.
l = [x.to_python (ctx) for x in self.assign_list]
l = [a for a in l if a != '']
return "\n".join (l)
def to_eth(self, ectx):
# Exports
ectx.eth_exports(self.exports)
# Imports
for i in self.imports:
mod = i.module.val
proto = ectx.conform.use_item('MODULE', mod, val_dflt=mod)
ectx.eth_module_dep_add(ectx.Module(), mod)
for s in i.symbol_list:
if isinstance(s, Type_Ref):
ectx.eth_import_type(s.val, mod, proto)
elif isinstance(s, Value_Ref):
ectx.eth_import_value(s.val, mod, proto)
elif isinstance(s, Class_Ref):
ectx.eth_import_class(s.val, mod, proto)
else:
msg = 'Unknown kind of imported symbol %s from %s' % (str(s), mod)
warnings.warn_explicit(msg, UserWarning, '', 0)
# AssignmentList
for a in self.assign_list:
a.eth_reg('', ectx)
class Default_Tags (Node):
def to_python (self, ctx): # not to be used directly
assert (0)
# XXX should just calculate dependencies as we go along.
def calc_dependencies (node, dict, trace = 0):
if not hasattr (node, '__dict__'):
if trace: print("#returning, node=", node)
return
if isinstance (node, Type_Ref):
dict [node.val] = 1
if trace: print("#Setting", node.val)
return
for (a, val) in list(node.__dict__.items ()):
if trace: print("# Testing node ", node, "attr", a, " val", val)
if a[0] == '_':
continue
elif isinstance (val, Node):
calc_dependencies (val, dict, trace)
elif isinstance (val, type ([])):
for v in val:
calc_dependencies (v, dict, trace)
class Type_Assign (Node):
def __init__ (self, *args, **kw):
Node.__init__ (self, *args, **kw)
if isinstance (self.val, Tag): # XXX replace with generalized get_typ_ignoring_tag (no-op for Node, override in Tag)
to_test = self.val.typ
else:
to_test = self.val
if isinstance (to_test, SequenceType):
to_test.sequence_name = self.name.name
def to_python (self, ctx):
dep_dict = {}
calc_dependencies (self.val, dep_dict, 0)
depend_list = list(dep_dict.keys ())
return ctx.register_assignment (self.name.name,
self.val.to_python (ctx),
depend_list)
class PyQuote (Node):
def to_python (self, ctx):
return ctx.register_pyquote (self.val)
#--- Type_Ref -----------------------------------------------------------------
class Type_Ref (Type):
def to_python (self, ctx):
return self.val
def eth_reg_sub(self, ident, ectx):
ectx.eth_dep_add(ident, self.val)
def eth_tname(self):
if self.HasSizeConstraint():
return asn2c(self.val) + '_' + self.constr.eth_constrname()
else:
return asn2c(self.val)
def tr_need_own_fn(self, ectx):
return ectx.Per() and self.HasSizeConstraint()
def fld_obj_repr(self, ectx):
return self.val
def get_components(self, ectx):
if self.val not in ectx.type or ectx.type[self.val]['import']:
msg = "Can not get COMPONENTS OF %s which is imported type" % (self.val)
warnings.warn_explicit(msg, UserWarning, '', 0)
return []
else:
return ectx.type[self.val]['val'].get_components(ectx)
def GetTTag(self, ectx):
#print "GetTTag(%s)\n" % self.val;
if (ectx.type[self.val]['import']):
if 'ttag' not in ectx.type[self.val]:
ttag = ectx.get_ttag_from_all(self.val, ectx.type[self.val]['import'])
if not ttag and not ectx.conform.check_item('IMPORT_TAG', self.val):
msg = 'Missing tag information for imported type %s from %s (%s)' % (self.val, ectx.type[self.val]['import'], ectx.type[self.val]['proto'])
warnings.warn_explicit(msg, UserWarning, '', 0)
ttag = ('-1/*imported*/', '-1/*imported*/')
ectx.type[self.val]['ttag'] = ectx.conform.use_item('IMPORT_TAG', self.val, val_dflt=ttag)
return ectx.type[self.val]['ttag']
else:
return ectx.type[self.val]['val'].GetTag(ectx)
def IndetermTag(self, ectx):
if (ectx.type[self.val]['import']):
return False
else:
return ectx.type[self.val]['val'].IndetermTag(ectx)
def eth_type_default_pars(self, ectx, tname):
if tname:
pars = Type.eth_type_default_pars(self, ectx, tname)
else:
pars = {}
t = ectx.type[self.val]['ethname']
pars['TYPE_REF_PROTO'] = ectx.eth_type[t]['proto']
pars['TYPE_REF_TNAME'] = t
pars['TYPE_REF_FN'] = 'dissect_%(TYPE_REF_PROTO)s_%(TYPE_REF_TNAME)s'
if self.HasSizeConstraint():
(pars['MIN_VAL'], pars['MAX_VAL'], pars['EXT']) = self.eth_get_size_constr(ectx)
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('%(TYPE_REF_FN)s', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),))
elif (ectx.Per()):
if self.HasSizeConstraint():
body = ectx.eth_fn_call('dissect_%(ER)s_size_constrained_type', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s', '%(TYPE_REF_FN)s',),
('"%(TYPE_REF_TNAME)s"', '%(MIN_VAL)s', '%(MAX_VAL)s', '%(EXT)s',),))
else:
body = ectx.eth_fn_call('%(TYPE_REF_FN)s', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- SelectionType ------------------------------------------------------------
class SelectionType (Type):
def to_python (self, ctx):
return self.val
def sel_of_typeref(self):
return self.typ.type == 'Type_Ref'
def eth_reg_sub(self, ident, ectx):
if not self.sel_of_typeref():
self.seltype = ''
return
self.seltype = ectx.eth_sel_req(self.typ.val, self.sel)
ectx.eth_dep_add(ident, self.seltype)
def eth_ftype(self, ectx):
(ftype, display) = ('FT_NONE', 'BASE_NONE')
if self.sel_of_typeref() and not ectx.type[self.seltype]['import']:
(ftype, display) = ectx.type[self.typ.val]['val'].eth_ftype_sel(self.sel, ectx)
return (ftype, display)
def GetTTag(self, ectx):
#print "GetTTag(%s)\n" % self.seltype;
if (ectx.type[self.seltype]['import']):
if 'ttag' not in ectx.type[self.seltype]:
if not ectx.conform.check_item('IMPORT_TAG', self.seltype):
msg = 'Missing tag information for imported type %s from %s (%s)' % (self.seltype, ectx.type[self.seltype]['import'], ectx.type[self.seltype]['proto'])
warnings.warn_explicit(msg, UserWarning, '', 0)
ectx.type[self.seltype]['ttag'] = ectx.conform.use_item('IMPORT_TAG', self.seltype, val_dflt=('-1 /*imported*/', '-1 /*imported*/'))
return ectx.type[self.seltype]['ttag']
else:
return ectx.type[self.typ.val]['val'].GetTTagSel(self.sel, ectx)
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
if self.sel_of_typeref():
t = ectx.type[self.seltype]['ethname']
pars['TYPE_REF_PROTO'] = ectx.eth_type[t]['proto']
pars['TYPE_REF_TNAME'] = t
pars['TYPE_REF_FN'] = 'dissect_%(TYPE_REF_PROTO)s_%(TYPE_REF_TNAME)s'
return pars
def eth_type_default_body(self, ectx, tname):
if not self.sel_of_typeref():
body = '#error Can not decode %s' % (tname)
elif (ectx.Ber()):
body = ectx.eth_fn_call('%(TYPE_REF_FN)s', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),))
elif (ectx.Per()):
body = ectx.eth_fn_call('%(TYPE_REF_FN)s', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- TaggedType -----------------------------------------------------------------
class TaggedType (Type):
def eth_tname(self):
tn = ''
for i in range(self.tstrip, len(self.val.tags)):
tn += self.val.tags[i].eth_tname()
tn += '_'
tn += self.val.eth_tname()
return tn
def eth_set_val_name(self, ident, val_name, ectx):
#print "TaggedType::eth_set_val_name(): ident=%s, val_name=%s" % (ident, val_name)
self.val_name = val_name
ectx.eth_dep_add(ident, self.val_name)
def eth_reg_sub(self, ident, ectx):
self.val_name = ident + '/' + UNTAG_TYPE_NAME
self.val.eth_reg(self.val_name, ectx, tstrip=self.tstrip+1, tagflag=True, parent=ident)
def GetTTag(self, ectx):
#print "GetTTag(%s)\n" % self.seltype;
return self.GetTag(ectx)
def eth_ftype(self, ectx):
return self.val.eth_ftype(ectx)
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
t = ectx.type[self.val_name]['ethname']
pars['TYPE_REF_PROTO'] = ectx.eth_type[t]['proto']
pars['TYPE_REF_TNAME'] = t
pars['TYPE_REF_FN'] = 'dissect_%(TYPE_REF_PROTO)s_%(TYPE_REF_TNAME)s'
(pars['TAG_CLS'], pars['TAG_TAG']) = self.GetTag(ectx)
if self.HasImplicitTag(ectx):
pars['TAG_IMPL'] = 'TRUE'
else:
pars['TAG_IMPL'] = 'FALSE'
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('dissect_%(ER)s_tagged_type', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s'),
('%(HF_INDEX)s', '%(TAG_CLS)s', '%(TAG_TAG)s', '%(TAG_IMPL)s', '%(TYPE_REF_FN)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- SqType -----------------------------------------------------------
class SqType (Type):
def out_item(self, f, val, optional, ext, ectx):
if (val.eth_omit_field()):
t = ectx.type[val.ident]['ethname']
fullname = ectx.dummy_eag_field
else:
ef = ectx.field[f]['ethname']
t = ectx.eth_hf[ef]['ethtype']
fullname = ectx.eth_hf[ef]['fullname']
if (ectx.Ber()):
#print "optional=%s, e.val.HasOwnTag()=%s, e.val.IndetermTag()=%s" % (str(e.optional), str(e.val.HasOwnTag()), str(e.val.IndetermTag(ectx)))
#print val.str_depth(1)
opt = ''
if (optional):
opt = 'BER_FLAGS_OPTIONAL'
if (not val.HasOwnTag()):
if (opt): opt += '|'
opt += 'BER_FLAGS_NOOWNTAG'
elif (val.HasImplicitTag(ectx)):
if (opt): opt += '|'
opt += 'BER_FLAGS_IMPLTAG'
if (val.IndetermTag(ectx)):
if (opt): opt += '|'
opt += 'BER_FLAGS_NOTCHKTAG'
if (not opt): opt = '0'
else:
if optional:
opt = 'ASN1_OPTIONAL'
else:
opt = 'ASN1_NOT_OPTIONAL'
if (ectx.Ber()):
(tc, tn) = val.GetTag(ectx)
out = ' { %-24s, %-13s, %s, %s, dissect_%s_%s },\n' \
% ('&'+fullname, tc, tn, opt, ectx.eth_type[t]['proto'], t)
elif (ectx.Per()):
out = ' { %-24s, %-23s, %-17s, dissect_%s_%s },\n' \
% ('&'+fullname, ext, opt, ectx.eth_type[t]['proto'], t)
else:
out = ''
return out
#--- SeqType -----------------------------------------------------------
class SeqType (SqType):
def all_components(self):
lst = self.elt_list[:]
if hasattr(self, 'ext_list'):
lst.extend(self.ext_list)
if hasattr(self, 'elt_list2'):
lst.extend(self.elt_list2)
return lst
def need_components(self):
lst = self.all_components()
for e in (lst):
if e.type == 'components_of':
return True
return False
def expand_components(self, ectx):
while self.need_components():
for i in range(len(self.elt_list)):
if self.elt_list[i].type == 'components_of':
comp = self.elt_list[i].typ.get_components(ectx)
self.elt_list[i:i+1] = comp
break
if hasattr(self, 'ext_list'):
for i in range(len(self.ext_list)):
if self.ext_list[i].type == 'components_of':
comp = self.ext_list[i].typ.get_components(ectx)
self.ext_list[i:i+1] = comp
break
if hasattr(self, 'elt_list2'):
for i in range(len(self.elt_list2)):
if self.elt_list2[i].type == 'components_of':
comp = self.elt_list2[i].typ.get_components(ectx)
self.elt_list2[i:i+1] = comp
break
def get_components(self, ectx):
lst = self.elt_list[:]
if hasattr(self, 'elt_list2'):
lst.extend(self.elt_list2)
return lst
def eth_reg_sub(self, ident, ectx, components_available=False):
# check if autotag is required
autotag = False
if (ectx.NeedTags() and (ectx.tag_def == 'AUTOMATIC')):
autotag = True
lst = self.all_components()
for e in (self.elt_list):
if e.val.HasOwnTag(): autotag = False; break;
# expand COMPONENTS OF
if self.need_components():
if components_available:
self.expand_components(ectx)
else:
ectx.eth_comp_req(ident)
return
# extension addition groups
if hasattr(self, 'ext_list'):
if (ectx.Per()): # add names
eag_num = 1
for e in (self.ext_list):
if isinstance(e.val, ExtensionAdditionGroup):
e.val.parent_ident = ident
e.val.parent_tname = ectx.type[ident]['tname']
if (e.val.ver):
e.val.SetName("eag_v%s" % (e.val.ver))
else:
e.val.SetName("eag_%d" % (eag_num))
eag_num += 1;
else: # expand
new_ext_list = []
for e in (self.ext_list):
if isinstance(e.val, ExtensionAdditionGroup):
new_ext_list.extend(e.val.elt_list)
else:
new_ext_list.append(e)
self.ext_list = new_ext_list
# do autotag
if autotag:
atag = 0
for e in (self.elt_list):
e.val.AddTag(Tag(cls = 'CONTEXT', num = str(atag), mode = 'IMPLICIT'))
atag += 1
if autotag and hasattr(self, 'elt_list2'):
for e in (self.elt_list2):
e.val.AddTag(Tag(cls = 'CONTEXT', num = str(atag), mode = 'IMPLICIT'))
atag += 1
if autotag and hasattr(self, 'ext_list'):
for e in (self.ext_list):
e.val.AddTag(Tag(cls = 'CONTEXT', num = str(atag), mode = 'IMPLICIT'))
atag += 1
# register components
for e in (self.elt_list):
e.val.eth_reg(ident, ectx, tstrip=1, parent=ident)
if hasattr(self, 'ext_list'):
for e in (self.ext_list):
e.val.eth_reg(ident, ectx, tstrip=1, parent=ident)
if hasattr(self, 'elt_list2'):
for e in (self.elt_list2):
e.val.eth_reg(ident, ectx, tstrip=1, parent=ident)
def eth_type_default_table(self, ectx, tname):
#print "eth_type_default_table(tname='%s')" % (tname)
fname = ectx.eth_type[tname]['ref'][0]
table = "static const %(ER)s_sequence_t %(TABLE)s[] = {\n"
if hasattr(self, 'ext_list'):
ext = 'ASN1_EXTENSION_ROOT'
else:
ext = 'ASN1_NO_EXTENSIONS'
empty_ext_flag = '0'
if (len(self.elt_list)==0) and hasattr(self, 'ext_list') and (len(self.ext_list)==0) and (not hasattr(self, 'elt_list2') or (len(self.elt_list2)==0)):
empty_ext_flag = ext
for e in (self.elt_list):
f = fname + '/' + e.val.name
table += self.out_item(f, e.val, e.optional, ext, ectx)
if hasattr(self, 'ext_list'):
for e in (self.ext_list):
f = fname + '/' + e.val.name
table += self.out_item(f, e.val, e.optional, 'ASN1_NOT_EXTENSION_ROOT', ectx)
if hasattr(self, 'elt_list2'):
for e in (self.elt_list2):
f = fname + '/' + e.val.name
table += self.out_item(f, e.val, e.optional, ext, ectx)
if (ectx.Ber()):
table += " { NULL, 0, 0, 0, NULL }\n};\n"
else:
table += " { NULL, %s, 0, NULL }\n};\n" % (empty_ext_flag)
return table
#--- SeqOfType -----------------------------------------------------------
class SeqOfType (SqType):
def eth_type_default_table(self, ectx, tname):
#print "eth_type_default_table(tname='%s')" % (tname)
fname = ectx.eth_type[tname]['ref'][0]
if self.val.IsNamed ():
f = fname + '/' + self.val.name
else:
f = fname + '/' + ITEM_FIELD_NAME
table = "static const %(ER)s_sequence_t %(TABLE)s[1] = {\n"
table += self.out_item(f, self.val, False, 'ASN1_NO_EXTENSIONS', ectx)
table += "};\n"
return table
#--- SequenceOfType -----------------------------------------------------------
class SequenceOfType (SeqOfType):
def to_python (self, ctx):
# name, tag (None for no tag, EXPLICIT() for explicit), typ)
# or '' + (1,) for optional
sizestr = ''
if self.size_constr != None:
print("#Ignoring size constraint:", self.size_constr.subtype)
return "%sasn1.SEQUENCE_OF (%s%s)" % (ctx.spaces (),
self.val.to_python (ctx),
sizestr)
def eth_reg_sub(self, ident, ectx):
itmnm = ident
if not self.val.IsNamed ():
itmnm += '/' + ITEM_FIELD_NAME
self.val.eth_reg(itmnm, ectx, tstrip=1, idx='[##]', parent=ident)
def eth_tname(self):
if self.val.type != 'Type_Ref':
return '#' + self.type + '_' + str(id(self))
if not self.HasConstraint():
return "SEQUENCE_OF_" + self.val.eth_tname()
elif self.constr.IsSize():
return 'SEQUENCE_' + self.constr.eth_constrname() + '_OF_' + self.val.eth_tname()
else:
return '#' + self.type + '_' + str(id(self))
def eth_ftype(self, ectx):
return ('FT_UINT32', 'BASE_DEC')
def eth_need_tree(self):
return True
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_SEQUENCE')
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
(pars['MIN_VAL'], pars['MAX_VAL'], pars['EXT']) = self.eth_get_size_constr(ectx)
pars['TABLE'] = '%(PROTOP)s%(TNAME)s_sequence_of'
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
if (ectx.constraints_check and self.HasSizeConstraint()):
body = ectx.eth_fn_call('dissect_%(ER)s_constrained_sequence_of', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(TABLE)s', '%(HF_INDEX)s', '%(ETT_INDEX)s',),))
else:
body = ectx.eth_fn_call('dissect_%(ER)s_sequence_of', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s'),
('%(TABLE)s', '%(HF_INDEX)s', '%(ETT_INDEX)s',),))
elif (ectx.Per() and not self.HasConstraint()):
body = ectx.eth_fn_call('dissect_%(ER)s_sequence_of', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(ETT_INDEX)s', '%(TABLE)s',),))
elif (ectx.Per() and self.constr.type == 'Size'):
body = ectx.eth_fn_call('dissect_%(ER)s_constrained_sequence_of', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(ETT_INDEX)s', '%(TABLE)s',),
('%(MIN_VAL)s', '%(MAX_VAL)s','%(EXT)s'),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- SetOfType ----------------------------------------------------------------
class SetOfType (SeqOfType):
def eth_reg_sub(self, ident, ectx):
itmnm = ident
if not self.val.IsNamed ():
itmnm += '/' + ITEM_FIELD_NAME
self.val.eth_reg(itmnm, ectx, tstrip=1, idx='(##)', parent=ident)
def eth_tname(self):
if self.val.type != 'Type_Ref':
return '#' + self.type + '_' + str(id(self))
if not self.HasConstraint():
return "SET_OF_" + self.val.eth_tname()
elif self.constr.IsSize():
return 'SET_' + self.constr.eth_constrname() + '_OF_' + self.val.eth_tname()
else:
return '#' + self.type + '_' + str(id(self))
def eth_ftype(self, ectx):
return ('FT_UINT32', 'BASE_DEC')
def eth_need_tree(self):
return True
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_SET')
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
(pars['MIN_VAL'], pars['MAX_VAL'], pars['EXT']) = self.eth_get_size_constr(ectx)
pars['TABLE'] = '%(PROTOP)s%(TNAME)s_set_of'
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
if (ectx.constraints_check and self.HasSizeConstraint()):
body = ectx.eth_fn_call('dissect_%(ER)s_constrained_set_of', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(TABLE)s', '%(HF_INDEX)s', '%(ETT_INDEX)s',),))
else:
body = ectx.eth_fn_call('dissect_%(ER)s_set_of', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s'),
('%(TABLE)s', '%(HF_INDEX)s', '%(ETT_INDEX)s',),))
elif (ectx.Per() and not self.HasConstraint()):
body = ectx.eth_fn_call('dissect_%(ER)s_set_of', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(ETT_INDEX)s', '%(TABLE)s',),))
elif (ectx.Per() and self.constr.type == 'Size'):
body = ectx.eth_fn_call('dissect_%(ER)s_constrained_set_of', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(ETT_INDEX)s', '%(TABLE)s',),
('%(MIN_VAL)s', '%(MAX_VAL)s','%(EXT)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
def mk_tag_str (ctx, cls, typ, num):
# XXX should do conversion to int earlier!
val = int (num)
typ = typ.upper()
if typ == 'DEFAULT':
typ = ctx.tags_def
return 'asn1.%s(%d,cls=asn1.%s_FLAG)' % (typ, val, cls) # XXX still ned
#--- SequenceType -------------------------------------------------------------
class SequenceType (SeqType):
def to_python (self, ctx):
# name, tag (None for no tag, EXPLICIT() for explicit), typ)
# or '' + (1,) for optional
# XXX should also collect names for SEQUENCE inside SEQUENCE or
# CHOICE or SEQUENCE_OF (where should the SEQUENCE_OF name come
# from? for others, element or arm name would be fine)
seq_name = getattr (self, 'sequence_name', None)
if seq_name == None:
seq_name = 'None'
else:
seq_name = "'" + seq_name + "'"
if 'ext_list' in self.__dict__:
return "%sasn1.SEQUENCE ([%s], ext=[%s], seq_name = %s)" % (ctx.spaces (),
self.elts_to_py (self.elt_list, ctx),
self.elts_to_py (self.ext_list, ctx), seq_name)
else:
return "%sasn1.SEQUENCE ([%s]), seq_name = %s" % (ctx.spaces (),
self.elts_to_py (self.elt_list, ctx), seq_name)
def elts_to_py (self, list, ctx):
# we have elt_type, val= named_type, maybe default=, optional=
# named_type node: either ident = or typ =
# need to dismember these in order to generate Python output syntax.
ctx.indent ()
def elt_to_py (e):
assert (e.type == 'elt_type')
nt = e.val
optflag = e.optional
#assert (not hasattr (e, 'default')) # XXX add support for DEFAULT!
assert (nt.type == 'named_type')
tagstr = 'None'
identstr = nt.ident
if hasattr (nt.typ, 'type') and nt.typ.type == 'tag': # ugh
tagstr = mk_tag_str (ctx,nt.typ.tag.cls,
nt.typ.tag.tag_typ,nt.typ.tag.num)
nt = nt.typ
return "('%s',%s,%s,%d)" % (identstr, tagstr,
nt.typ.to_python (ctx), optflag)
indentstr = ",\n" + ctx.spaces ()
rv = indentstr.join ([elt_to_py (e) for e in list])
ctx.outdent ()
return rv
def eth_need_tree(self):
return True
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_SEQUENCE')
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
pars['TABLE'] = '%(PROTOP)s%(TNAME)s_sequence'
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('dissect_%(ER)s_sequence', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s'),
('%(TABLE)s', '%(HF_INDEX)s', '%(ETT_INDEX)s',),))
elif (ectx.Per()):
body = ectx.eth_fn_call('dissect_%(ER)s_sequence', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(ETT_INDEX)s', '%(TABLE)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- ExtensionAdditionGroup ---------------------------------------------------
class ExtensionAdditionGroup (SeqType):
def __init__(self,*args, **kw) :
self.parent_ident = None
self.parent_tname = None
SeqType.__init__ (self,*args, **kw)
def eth_omit_field(self):
return True
def eth_tname(self):
if (self.parent_tname and self.IsNamed()):
return self.parent_tname + "_" + self.name
else:
return SeqType.eth_tname(self)
def eth_reg_sub(self, ident, ectx):
ectx.eth_dummy_eag_field_required()
ectx.eth_dep_add(self.parent_ident, ident)
SeqType.eth_reg_sub(self, ident, ectx)
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
pars['TABLE'] = '%(PROTOP)s%(TNAME)s_sequence'
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Per()):
body = ectx.eth_fn_call('dissect_%(ER)s_sequence_eag', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(TABLE)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- SetType ------------------------------------------------------------------
class SetType (SeqType):
def eth_need_tree(self):
return True
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_SET')
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
pars['TABLE'] = '%(PROTOP)s%(TNAME)s_set'
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('dissect_%(ER)s_set', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s'),
('%(TABLE)s', '%(HF_INDEX)s', '%(ETT_INDEX)s',),))
elif (ectx.Per()):
body = ectx.eth_fn_call('dissect_%(ER)s_set', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(ETT_INDEX)s', '%(TABLE)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- ChoiceType ---------------------------------------------------------------
class ChoiceType (Type):
def to_python (self, ctx):
# name, tag (None for no tag, EXPLICIT() for explicit), typ)
# or '' + (1,) for optional
if 'ext_list' in self.__dict__:
return "%sasn1.CHOICE ([%s], ext=[%s])" % (ctx.spaces (),
self.elts_to_py (self.elt_list, ctx),
self.elts_to_py (self.ext_list, ctx))
else:
return "%sasn1.CHOICE ([%s])" % (ctx.spaces (), self.elts_to_py (self.elt_list, ctx))
def elts_to_py (self, list, ctx):
ctx.indent ()
def elt_to_py (nt):
assert (nt.type == 'named_type')
tagstr = 'None'
if hasattr (nt, 'ident'):
identstr = nt.ident
else:
if hasattr (nt.typ, 'val'):
identstr = nt.typ.val # XXX, making up name
elif hasattr (nt.typ, 'name'):
identstr = nt.typ.name
else:
identstr = ctx.make_new_name ()
if hasattr (nt.typ, 'type') and nt.typ.type == 'tag': # ugh
tagstr = mk_tag_str (ctx,nt.typ.tag.cls,
nt.typ.tag.tag_typ,nt.typ.tag.num)
nt = nt.typ
return "('%s',%s,%s)" % (identstr, tagstr,
nt.typ.to_python (ctx))
indentstr = ",\n" + ctx.spaces ()
rv = indentstr.join ([elt_to_py (e) for e in list])
ctx.outdent ()
return rv
def eth_reg_sub(self, ident, ectx):
#print "eth_reg_sub(ident='%s')" % (ident)
# check if autotag is required
autotag = False
if (ectx.NeedTags() and (ectx.tag_def == 'AUTOMATIC')):
autotag = True
for e in (self.elt_list):
if e.HasOwnTag(): autotag = False; break;
if autotag and hasattr(self, 'ext_list'):
for e in (self.ext_list):
if e.HasOwnTag(): autotag = False; break;
# do autotag
if autotag:
atag = 0
for e in (self.elt_list):
e.AddTag(Tag(cls = 'CONTEXT', num = str(atag), mode = 'IMPLICIT'))
atag += 1
if autotag and hasattr(self, 'ext_list'):
for e in (self.ext_list):
e.AddTag(Tag(cls = 'CONTEXT', num = str(atag), mode = 'IMPLICIT'))
atag += 1
for e in (self.elt_list):
e.eth_reg(ident, ectx, tstrip=1, parent=ident)
if ectx.conform.check_item('EXPORTS', ident + '.' + e.name):
ectx.eth_sel_req(ident, e.name)
if hasattr(self, 'ext_list'):
for e in (self.ext_list):
e.eth_reg(ident, ectx, tstrip=1, parent=ident)
if ectx.conform.check_item('EXPORTS', ident + '.' + e.name):
ectx.eth_sel_req(ident, e.name)
def sel_item(self, ident, sel, ectx):
lst = self.elt_list[:]
if hasattr(self, 'ext_list'):
lst.extend(self.ext_list)
ee = None
for e in (self.elt_list):
if e.IsNamed() and (e.name == sel):
ee = e
break
if not ee:
print("#CHOICE %s does not contain item %s" % (ident, sel))
return ee
def sel_req(self, ident, sel, ectx):
#print "sel_req(ident='%s', sel=%s)\n%s" % (ident, sel, str(self))
ee = self.sel_item(ident, sel, ectx)
if ee:
ee.eth_reg(ident, ectx, tstrip=0, selflag=True)
def eth_ftype(self, ectx):
return ('FT_UINT32', 'BASE_DEC')
def eth_ftype_sel(self, sel, ectx):
ee = self.sel_item('', sel, ectx)
if ee:
return ee.eth_ftype(ectx)
else:
return ('FT_NONE', 'BASE_NONE')
def eth_strings(self):
return '$$'
def eth_need_tree(self):
return True
def eth_has_vals(self):
return True
def GetTTag(self, ectx):
lst = self.elt_list
cls = 'BER_CLASS_ANY/*choice*/'
#if hasattr(self, 'ext_list'):
# lst.extend(self.ext_list)
#if (len(lst) > 0):
# cls = lst[0].GetTag(ectx)[0]
#for e in (lst):
# if (e.GetTag(ectx)[0] != cls):
# cls = '-1/*choice*/'
return (cls, '-1/*choice*/')
def GetTTagSel(self, sel, ectx):
ee = self.sel_item('', sel, ectx)
if ee:
return ee.GetTag(ectx)
else:
return ('BER_CLASS_ANY/*unknown selection*/', '-1/*unknown selection*/')
def IndetermTag(self, ectx):
#print "Choice IndetermTag()=%s" % (str(not self.HasOwnTag()))
return not self.HasOwnTag()
def detect_tagval(self, ectx):
tagval = False
lst = self.elt_list[:]
if hasattr(self, 'ext_list'):
lst.extend(self.ext_list)
if (len(lst) > 0) and (not ectx.Per() or lst[0].HasOwnTag()):
t = lst[0].GetTag(ectx)[0]
tagval = True
else:
t = ''
tagval = False
if (t == 'BER_CLASS_UNI'):
tagval = False
for e in (lst):
if not ectx.Per() or e.HasOwnTag():
tt = e.GetTag(ectx)[0]
else:
tt = ''
tagval = False
if (tt != t):
tagval = False
return tagval
def get_vals(self, ectx):
tagval = self.detect_tagval(ectx)
vals = []
cnt = 0
for e in (self.elt_list):
if (tagval): val = e.GetTag(ectx)[1]
else: val = str(cnt)
vals.append((val, e.name))
cnt += 1
if hasattr(self, 'ext_list'):
for e in (self.ext_list):
if (tagval): val = e.GetTag(ectx)[1]
else: val = str(cnt)
vals.append((val, e.name))
cnt += 1
return vals
def eth_type_vals(self, tname, ectx):
out = '\n'
vals = self.get_vals(ectx)
out += ectx.eth_vals(tname, vals)
return out
def reg_enum_vals(self, tname, ectx):
vals = self.get_vals(ectx)
for (val, id) in vals:
ectx.eth_reg_value(id, self, val, ethname=ectx.eth_enum_item(tname, id))
def eth_type_enum(self, tname, ectx):
out = '\n'
vals = self.get_vals(ectx)
out += ectx.eth_enum(tname, vals)
return out
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
pars['TABLE'] = '%(PROTOP)s%(TNAME)s_choice'
return pars
def eth_type_default_table(self, ectx, tname):
def out_item(val, e, ext, ectx):
has_enum = ectx.eth_type[tname]['enum'] & EF_ENUM
if (has_enum):
vval = ectx.eth_enum_item(tname, e.name)
else:
vval = val
f = fname + '/' + e.name
ef = ectx.field[f]['ethname']
t = ectx.eth_hf[ef]['ethtype']
if (ectx.Ber()):
opt = ''
if (not e.HasOwnTag()):
opt = 'BER_FLAGS_NOOWNTAG'
elif (e.HasImplicitTag(ectx)):
if (opt): opt += '|'
opt += 'BER_FLAGS_IMPLTAG'
if (not opt): opt = '0'
if (ectx.Ber()):
(tc, tn) = e.GetTag(ectx)
out = ' { %3s, %-24s, %-13s, %s, %s, dissect_%s_%s },\n' \
% (vval, '&'+ectx.eth_hf[ef]['fullname'], tc, tn, opt, ectx.eth_type[t]['proto'], t)
elif (ectx.Per()):
out = ' { %3s, %-24s, %-23s, dissect_%s_%s },\n' \
% (vval, '&'+ectx.eth_hf[ef]['fullname'], ext, ectx.eth_type[t]['proto'], t)
else:
out = ''
return out
# end out_item()
#print "eth_type_default_table(tname='%s')" % (tname)
fname = ectx.eth_type[tname]['ref'][0]
tagval = self.detect_tagval(ectx)
table = "static const %(ER)s_choice_t %(TABLE)s[] = {\n"
cnt = 0
if hasattr(self, 'ext_list'):
ext = 'ASN1_EXTENSION_ROOT'
else:
ext = 'ASN1_NO_EXTENSIONS'
empty_ext_flag = '0'
if (len(self.elt_list)==0) and hasattr(self, 'ext_list') and (len(self.ext_list)==0):
empty_ext_flag = ext
for e in (self.elt_list):
if (tagval): val = e.GetTag(ectx)[1]
else: val = str(cnt)
table += out_item(val, e, ext, ectx)
cnt += 1
if hasattr(self, 'ext_list'):
for e in (self.ext_list):
if (tagval): val = e.GetTag(ectx)[1]
else: val = str(cnt)
table += out_item(val, e, 'ASN1_NOT_EXTENSION_ROOT', ectx)
cnt += 1
if (ectx.Ber()):
table += " { 0, NULL, 0, 0, 0, NULL }\n};\n"
else:
table += " { 0, NULL, %s, NULL }\n};\n" % (empty_ext_flag)
return table
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('dissect_%(ER)s_choice', ret='offset',
par=(('%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s'),
('%(TABLE)s', '%(HF_INDEX)s', '%(ETT_INDEX)s'),
('%(VAL_PTR)s',),))
elif (ectx.Per()):
body = ectx.eth_fn_call('dissect_%(ER)s_choice', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(ETT_INDEX)s', '%(TABLE)s',),
('%(VAL_PTR)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- ChoiceValue ----------------------------------------------------
class ChoiceValue (Value):
def to_str(self, ectx):
return self.val.to_str(ectx)
def fld_obj_eq(self, other):
return isinstance(other, ChoiceValue) and (self.choice == other.choice) and (str(self.val.val) == str(other.val.val))
#--- EnumeratedType -----------------------------------------------------------
class EnumeratedType (Type):
def to_python (self, ctx):
def strify_one (named_num):
return "%s=%s" % (named_num.ident, named_num.val)
return "asn1.ENUM(%s)" % ",".join (map (strify_one, self.val))
def eth_ftype(self, ectx):
return ('FT_UINT32', 'BASE_DEC')
def eth_strings(self):
return '$$'
def eth_has_vals(self):
return True
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_ENUMERATED')
def get_vals_etc(self, ectx):
vals = []
lastv = 0
used = {}
maxv = 0
root_num = 0
ext_num = 0
map_table = []
for e in (self.val):
if e.type == 'NamedNumber':
used[int(e.val)] = True
for e in (self.val):
if e.type == 'NamedNumber':
val = int(e.val)
else:
while lastv in used:
lastv += 1
val = lastv
used[val] = True
vals.append((val, e.ident))
map_table.append(val)
root_num += 1
if val > maxv:
maxv = val
if self.ext is not None:
for e in (self.ext):
if e.type == 'NamedNumber':
used[int(e.val)] = True
for e in (self.ext):
if e.type == 'NamedNumber':
val = int(e.val)
else:
while lastv in used:
lastv += 1
val = lastv
used[val] = True
vals.append((val, e.ident))
map_table.append(val)
ext_num += 1
if val > maxv:
maxv = val
need_map = False
for i in range(len(map_table)):
need_map = need_map or (map_table[i] != i)
if (not need_map):
map_table = None
return (vals, root_num, ext_num, map_table)
def eth_type_vals(self, tname, ectx):
out = '\n'
vals = self.get_vals_etc(ectx)[0]
out += ectx.eth_vals(tname, vals)
return out
def reg_enum_vals(self, tname, ectx):
vals = self.get_vals_etc(ectx)[0]
for (val, id) in vals:
ectx.eth_reg_value(id, self, val, ethname=ectx.eth_enum_item(tname, id))
def eth_type_enum(self, tname, ectx):
out = '\n'
vals = self.get_vals_etc(ectx)[0]
out += ectx.eth_enum(tname, vals)
return out
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
(root_num, ext_num, map_table) = self.get_vals_etc(ectx)[1:]
if (self.ext != None):
ext = 'TRUE'
else:
ext = 'FALSE'
pars['ROOT_NUM'] = str(root_num)
pars['EXT'] = ext
pars['EXT_NUM'] = str(ext_num)
if (map_table):
pars['TABLE'] = '%(PROTOP)s%(TNAME)s_value_map'
else:
pars['TABLE'] = 'NULL'
return pars
def eth_type_default_table(self, ectx, tname):
if (not ectx.Per()): return ''
map_table = self.get_vals_etc(ectx)[3]
if (map_table == None): return ''
table = "static guint32 %(TABLE)s[%(ROOT_NUM)s+%(EXT_NUM)s] = {"
table += ", ".join([str(v) for v in map_table])
table += "};\n"
return table
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
if (ectx.constraints_check and self.HasValueConstraint()):
body = ectx.eth_fn_call('dissect_%(ER)s_constrained_integer', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(HF_INDEX)s', '%(VAL_PTR)s',),))
else:
body = ectx.eth_fn_call('dissect_%(ER)s_integer', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s', '%(HF_INDEX)s'),
('%(VAL_PTR)s',),))
elif (ectx.Per()):
body = ectx.eth_fn_call('dissect_%(ER)s_enumerated', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(ROOT_NUM)s', '%(VAL_PTR)s', '%(EXT)s', '%(EXT_NUM)s', '%(TABLE)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- EmbeddedPDVType -----------------------------------------------------------
class EmbeddedPDVType (Type):
def eth_tname(self):
return 'EMBEDDED_PDV'
def eth_ftype(self, ectx):
return ('FT_NONE', 'BASE_NONE')
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_EMBEDDED_PDV')
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
if ectx.default_embedded_pdv_cb:
pars['TYPE_REF_FN'] = ectx.default_embedded_pdv_cb
else:
pars['TYPE_REF_FN'] = 'NULL'
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('dissect_%(ER)s_EmbeddedPDV_Type', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(HF_INDEX)s', '%(TYPE_REF_FN)s',),))
elif (ectx.Per()):
body = ectx.eth_fn_call('dissect_%(ER)s_embedded_pdv', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s', '%(TYPE_REF_FN)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- ExternalType -----------------------------------------------------------
class ExternalType (Type):
def eth_tname(self):
return 'EXTERNAL'
def eth_ftype(self, ectx):
return ('FT_NONE', 'BASE_NONE')
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_EXTERNAL')
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
if ectx.default_external_type_cb:
pars['TYPE_REF_FN'] = ectx.default_external_type_cb
else:
pars['TYPE_REF_FN'] = 'NULL'
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('dissect_%(ER)s_external_type', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(HF_INDEX)s', '%(TYPE_REF_FN)s',),))
elif (ectx.Per()):
body = ectx.eth_fn_call('dissect_%(ER)s_external_type', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s', '%(TYPE_REF_FN)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- OpenType -----------------------------------------------------------
class OpenType (Type):
def to_python (self, ctx):
return "asn1.ANY"
def single_type(self):
if (self.HasConstraint() and
self.constr.type == 'Type' and
self.constr.subtype.type == 'Type_Ref'):
return self.constr.subtype.val
return None
def eth_reg_sub(self, ident, ectx):
t = self.single_type()
if t:
ectx.eth_dep_add(ident, t)
def eth_tname(self):
t = self.single_type()
if t:
return 'OpenType_' + t
else:
return Type.eth_tname(self)
def eth_ftype(self, ectx):
return ('FT_NONE', 'BASE_NONE')
def GetTTag(self, ectx):
return ('BER_CLASS_ANY', '0')
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
pars['FN_VARIANT'] = ectx.default_opentype_variant
t = self.single_type()
if t:
t = ectx.type[t]['ethname']
pars['TYPE_REF_PROTO'] = ectx.eth_type[t]['proto']
pars['TYPE_REF_TNAME'] = t
pars['TYPE_REF_FN'] = 'dissect_%(TYPE_REF_PROTO)s_%(TYPE_REF_TNAME)s'
else:
pars['TYPE_REF_FN'] = 'NULL'
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Per()):
body = ectx.eth_fn_call('dissect_%(ER)s_open_type%(FN_VARIANT)s', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s', '%(TYPE_REF_FN)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- InstanceOfType -----------------------------------------------------------
class InstanceOfType (Type):
def eth_tname(self):
return 'INSTANCE_OF'
def eth_ftype(self, ectx):
return ('FT_NONE', 'BASE_NONE')
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_EXTERNAL')
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
if ectx.default_external_type_cb:
pars['TYPE_REF_FN'] = ectx.default_external_type_cb
else:
pars['TYPE_REF_FN'] = 'NULL'
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('dissect_%(ER)s_external_type', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(HF_INDEX)s', '%(TYPE_REF_FN)s',),))
elif (ectx.Per()):
body = '#error Can not decode %s' % (tname)
else:
body = '#error Can not decode %s' % (tname)
return body
#--- AnyType -----------------------------------------------------------
class AnyType (Type):
def to_python (self, ctx):
return "asn1.ANY"
def eth_ftype(self, ectx):
return ('FT_NONE', 'BASE_NONE')
def GetTTag(self, ectx):
return ('BER_CLASS_ANY', '0')
def eth_type_default_body(self, ectx, tname):
body = '#error Can not decode %s' % (tname)
return body
class Literal (Node):
def to_python (self, ctx):
return self.val
#--- NullType -----------------------------------------------------------------
class NullType (Type):
def to_python (self, ctx):
return 'asn1.NULL'
def eth_tname(self):
return 'NULL'
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_NULL')
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('dissect_%(ER)s_null', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s', '%(HF_INDEX)s'),))
elif (ectx.Per()):
body = ectx.eth_fn_call('dissect_%(ER)s_null', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- NullValue ----------------------------------------------------
class NullValue (Value):
def to_str(self, ectx):
return 'NULL'
#--- RealType -----------------------------------------------------------------
class RealType (Type):
def to_python (self, ctx):
return 'asn1.REAL'
def eth_tname(self):
return 'REAL'
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_REAL')
def eth_ftype(self, ectx):
return ('FT_DOUBLE', 'BASE_NONE')
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('dissect_%(ER)s_real', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s', '%(HF_INDEX)s'),
('%(VAL_PTR)s',),))
elif (ectx.Per()):
body = ectx.eth_fn_call('dissect_%(ER)s_real', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s', '%(VAL_PTR)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- BooleanType --------------------------------------------------------------
class BooleanType (Type):
def to_python (self, ctx):
return 'asn1.BOOLEAN'
def eth_tname(self):
return 'BOOLEAN'
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_BOOLEAN')
def eth_ftype(self, ectx):
return ('FT_BOOLEAN', 'BASE_NONE')
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('dissect_%(ER)s_boolean', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s', '%(HF_INDEX)s', '%(VAL_PTR)s'),))
elif (ectx.Per()):
body = ectx.eth_fn_call('dissect_%(ER)s_boolean', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s', '%(VAL_PTR)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- OctetStringType ----------------------------------------------------------
class OctetStringType (Type):
def to_python (self, ctx):
return 'asn1.OCTSTRING'
def eth_tname(self):
if not self.HasConstraint():
return 'OCTET_STRING'
elif self.constr.type == 'Size':
return 'OCTET_STRING' + '_' + self.constr.eth_constrname()
else:
return '#' + self.type + '_' + str(id(self))
def eth_ftype(self, ectx):
return ('FT_BYTES', 'BASE_NONE')
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_OCTETSTRING')
def eth_need_pdu(self, ectx):
pdu = None
if self.HasContentsConstraint():
t = self.constr.GetContents(ectx)
if t and (ectx.default_containing_variant in ('_pdu', '_pdu_new')):
pdu = { 'type' : t,
'new' : ectx.default_containing_variant == '_pdu_new' }
return pdu
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
(pars['MIN_VAL'], pars['MAX_VAL'], pars['EXT']) = self.eth_get_size_constr(ectx)
if self.HasContentsConstraint():
pars['FN_VARIANT'] = ectx.default_containing_variant
t = self.constr.GetContents(ectx)
if t:
if pars['FN_VARIANT'] in ('_pdu', '_pdu_new'):
t = ectx.field[t]['ethname']
pars['TYPE_REF_PROTO'] = ''
pars['TYPE_REF_TNAME'] = t
pars['TYPE_REF_FN'] = 'dissect_%(TYPE_REF_TNAME)s'
else:
t = ectx.type[t]['ethname']
pars['TYPE_REF_PROTO'] = ectx.eth_type[t]['proto']
pars['TYPE_REF_TNAME'] = t
pars['TYPE_REF_FN'] = 'dissect_%(TYPE_REF_PROTO)s_%(TYPE_REF_TNAME)s'
else:
pars['TYPE_REF_FN'] = 'NULL'
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
if (ectx.constraints_check and self.HasSizeConstraint()):
body = ectx.eth_fn_call('dissect_%(ER)s_constrained_octet_string', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(HF_INDEX)s', '%(VAL_PTR)s',),))
else:
body = ectx.eth_fn_call('dissect_%(ER)s_octet_string', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s', '%(HF_INDEX)s'),
('%(VAL_PTR)s',),))
elif (ectx.Per()):
if self.HasContentsConstraint():
body = ectx.eth_fn_call('dissect_%(ER)s_octet_string_containing%(FN_VARIANT)s', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(EXT)s', '%(TYPE_REF_FN)s',),))
else:
body = ectx.eth_fn_call('dissect_%(ER)s_octet_string', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(EXT)s', '%(VAL_PTR)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- CharacterStringType ------------------------------------------------------
class CharacterStringType (Type):
def eth_tname(self):
if not self.HasConstraint():
return self.eth_tsname()
elif self.constr.type == 'Size':
return self.eth_tsname() + '_' + self.constr.eth_constrname()
else:
return '#' + self.type + '_' + str(id(self))
def eth_ftype(self, ectx):
return ('FT_STRING', 'BASE_NONE')
class RestrictedCharacterStringType (CharacterStringType):
def to_python (self, ctx):
return 'asn1.' + self.eth_tsname()
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_' + self.eth_tsname())
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
(pars['MIN_VAL'], pars['MAX_VAL'], pars['EXT']) = self.eth_get_size_constr(ectx)
(pars['STRING_TYPE'], pars['STRING_TAG']) = (self.eth_tsname(), self.GetTTag(ectx)[1])
(pars['ALPHABET'], pars['ALPHABET_LEN']) = self.eth_get_alphabet_constr(ectx)
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
if (ectx.constraints_check and self.HasSizeConstraint()):
body = ectx.eth_fn_call('dissect_%(ER)s_constrained_restricted_string', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(STRING_TAG)s'),
('%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(HF_INDEX)s', '%(VAL_PTR)s',),))
else:
body = ectx.eth_fn_call('dissect_%(ER)s_restricted_string', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(STRING_TAG)s'),
('%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s', '%(HF_INDEX)s'),
('%(VAL_PTR)s',),))
elif (ectx.Per() and self.HasPermAlph()):
body = ectx.eth_fn_call('dissect_%(ER)s_restricted_character_string', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(EXT)s', '%(ALPHABET)s', '%(ALPHABET_LEN)s'),
('%(VAL_PTR)s',),))
elif (ectx.Per()):
if (self.eth_tsname() == 'GeneralString'):
body = ectx.eth_fn_call('dissect_%(ER)s_%(STRING_TYPE)s', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),))
elif (self.eth_tsname() == 'GeneralizedTime'):
body = ectx.eth_fn_call('dissect_%(ER)s_VisibleString', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(EXT)s',),))
elif (self.eth_tsname() == 'UTCTime'):
body = ectx.eth_fn_call('dissect_%(ER)s_VisibleString', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(EXT)s',),))
else:
body = ectx.eth_fn_call('dissect_%(ER)s_%(STRING_TYPE)s', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(EXT)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
class BMPStringType (RestrictedCharacterStringType):
def eth_tsname(self):
return 'BMPString'
class GeneralStringType (RestrictedCharacterStringType):
def eth_tsname(self):
return 'GeneralString'
class GraphicStringType (RestrictedCharacterStringType):
def eth_tsname(self):
return 'GraphicString'
class IA5StringType (RestrictedCharacterStringType):
def eth_tsname(self):
return 'IA5String'
class NumericStringType (RestrictedCharacterStringType):
def eth_tsname(self):
return 'NumericString'
class PrintableStringType (RestrictedCharacterStringType):
def eth_tsname(self):
return 'PrintableString'
class TeletexStringType (RestrictedCharacterStringType):
def eth_tsname(self):
return 'TeletexString'
class T61StringType (RestrictedCharacterStringType):
def eth_tsname(self):
return 'T61String'
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_TeletexString')
class UniversalStringType (RestrictedCharacterStringType):
def eth_tsname(self):
return 'UniversalString'
class UTF8StringType (RestrictedCharacterStringType):
def eth_tsname(self):
return 'UTF8String'
class VideotexStringType (RestrictedCharacterStringType):
def eth_tsname(self):
return 'VideotexString'
class VisibleStringType (RestrictedCharacterStringType):
def eth_tsname(self):
return 'VisibleString'
class ISO646StringType (RestrictedCharacterStringType):
def eth_tsname(self):
return 'ISO646String'
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_VisibleString')
class UnrestrictedCharacterStringType (CharacterStringType):
def to_python (self, ctx):
return 'asn1.UnrestrictedCharacterString'
def eth_tsname(self):
return 'CHARACTER_STRING'
#--- UsefulType ---------------------------------------------------------------
class GeneralizedTime (RestrictedCharacterStringType):
def eth_tsname(self):
return 'GeneralizedTime'
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('dissect_%(ER)s_%(STRING_TYPE)s', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s', '%(HF_INDEX)s'),))
return body
else:
return RestrictedCharacterStringType.eth_type_default_body(self, ectx, tname)
class UTCTime (RestrictedCharacterStringType):
def eth_tsname(self):
return 'UTCTime'
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('dissect_%(ER)s_%(STRING_TYPE)s', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s', '%(HF_INDEX)s'),))
return body
else:
return RestrictedCharacterStringType.eth_type_default_body(self, ectx, tname)
class ObjectDescriptor (RestrictedCharacterStringType):
def eth_tsname(self):
return 'ObjectDescriptor'
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = RestrictedCharacterStringType.eth_type_default_body(self, ectx, tname)
elif (ectx.Per()):
body = ectx.eth_fn_call('dissect_%(ER)s_object_descriptor', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s', '%(VAL_PTR)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- ObjectIdentifierType -----------------------------------------------------
class ObjectIdentifierType (Type):
def to_python (self, ctx):
return 'asn1.OBJECT_IDENTIFIER'
def eth_tname(self):
return 'OBJECT_IDENTIFIER'
def eth_ftype(self, ectx):
return ('FT_OID', 'BASE_NONE')
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_OID')
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
pars['FN_VARIANT'] = ectx.default_oid_variant
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('dissect_%(ER)s_object_identifier%(FN_VARIANT)s', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s', '%(HF_INDEX)s', '%(VAL_PTR)s',),))
elif (ectx.Per()):
body = ectx.eth_fn_call('dissect_%(ER)s_object_identifier%(FN_VARIANT)s', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s', '%(VAL_PTR)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- ObjectIdentifierValue ----------------------------------------------------
class ObjectIdentifierValue (Value):
def get_num(self, path, val):
return str(oid_names.get(path + '/' + val, val))
def to_str(self, ectx):
out = ''
path = ''
first = True
sep = ''
for v in self.comp_list:
if isinstance(v, Node) and (v.type == 'name_and_number'):
vstr = v.number
elif v.isdigit():
vstr = v
else:
vstr = self.get_num(path, v)
if not first and not vstr.isdigit():
vstr = ectx.value_get_val(vstr)
if first:
if vstr.isdigit():
out += '"' + vstr
else:
out += ectx.value_get_eth(vstr) + '"'
else:
out += sep + vstr
path += sep + vstr
first = False
sep = '.'
out += '"'
return out
def get_dep(self):
v = self.comp_list[0]
if isinstance(v, Node) and (v.type == 'name_and_number'):
return None
elif v.isdigit():
return None
else:
vstr = self.get_num('', v)
if vstr.isdigit():
return None
else:
return vstr
class NamedNumber(Node):
def to_python (self, ctx):
return "('%s',%s)" % (self.ident, self.val)
class NamedNumListBase(Node):
def to_python (self, ctx):
return "asn1.%s_class ([%s])" % (self.asn1_typ,",".join (
[x.to_python (ctx) for x in self.named_list]))
#--- RelativeOIDType ----------------------------------------------------------
class RelativeOIDType (Type):
def eth_tname(self):
return 'RELATIVE_OID'
def eth_ftype(self, ectx):
return ('FT_REL_OID', 'BASE_NONE')
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_RELATIVE_OID')
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
pars['FN_VARIANT'] = ectx.default_oid_variant
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
body = ectx.eth_fn_call('dissect_%(ER)s_relative_oid%(FN_VARIANT)s', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s', '%(HF_INDEX)s', '%(VAL_PTR)s',),))
elif (ectx.Per()):
body = ectx.eth_fn_call('dissect_%(ER)s_relative_oid%(FN_VARIANT)s', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s', '%(VAL_PTR)s',),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- IntegerType --------------------------------------------------------------
class IntegerType (Type):
def to_python (self, ctx):
return "asn1.INTEGER_class ([%s])" % (",".join (
[x.to_python (ctx) for x in self.named_list]))
def add_named_value(self, ident, val):
e = NamedNumber(ident = ident, val = val)
if not self.named_list:
self.named_list = []
self.named_list.append(e)
def eth_tname(self):
if self.named_list:
return Type.eth_tname(self)
if not self.HasConstraint():
return 'INTEGER'
elif self.constr.type == 'SingleValue' or self.constr.type == 'ValueRange':
return 'INTEGER' + '_' + self.constr.eth_constrname()
else:
return 'INTEGER' + '_' + self.constr.eth_tname()
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_INTEGER')
def eth_ftype(self, ectx):
if self.HasConstraint():
if not self.constr.IsNegativ():
if self.constr.Needs64b(ectx):
return ('FT_UINT64', 'BASE_DEC')
else:
return ('FT_UINT32', 'BASE_DEC')
if self.constr.Needs64b(ectx):
return ('FT_INT64', 'BASE_DEC')
return ('FT_INT32', 'BASE_DEC')
def eth_strings(self):
if (self.named_list):
return '$$'
else:
return 'NULL'
def eth_has_vals(self):
if (self.named_list):
return True
else:
return False
def get_vals(self, ectx):
vals = []
for e in (self.named_list):
vals.append((int(e.val), e.ident))
return vals
def eth_type_vals(self, tname, ectx):
if not self.eth_has_vals(): return ''
out = '\n'
vals = self.get_vals(ectx)
out += ectx.eth_vals(tname, vals)
return out
def reg_enum_vals(self, tname, ectx):
vals = self.get_vals(ectx)
for (val, id) in vals:
ectx.eth_reg_value(id, self, val, ethname=ectx.eth_enum_item(tname, id))
def eth_type_enum(self, tname, ectx):
if not self.eth_has_enum(tname, ectx): return ''
out = '\n'
vals = self.get_vals(ectx)
out += ectx.eth_enum(tname, vals)
return out
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
if self.HasValueConstraint():
(pars['MIN_VAL'], pars['MAX_VAL'], pars['EXT']) = self.eth_get_value_constr(ectx)
if (pars['FN_VARIANT'] == '') and self.constr.Needs64b(ectx):
if ectx.Ber(): pars['FN_VARIANT'] = '64'
else: pars['FN_VARIANT'] = '_64b'
return pars
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
if (ectx.constraints_check and self.HasValueConstraint()):
body = ectx.eth_fn_call('dissect_%(ER)s_constrained_integer%(FN_VARIANT)s', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(HF_INDEX)s', '%(VAL_PTR)s',),))
else:
body = ectx.eth_fn_call('dissect_%(ER)s_integer%(FN_VARIANT)s', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s', '%(HF_INDEX)s'),
('%(VAL_PTR)s',),))
elif (ectx.Per() and not self.HasValueConstraint()):
body = ectx.eth_fn_call('dissect_%(ER)s_integer%(FN_VARIANT)s', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s', '%(VAL_PTR)s'),))
elif (ectx.Per() and self.HasValueConstraint()):
body = ectx.eth_fn_call('dissect_%(ER)s_constrained_integer%(FN_VARIANT)s', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(VAL_PTR)s', '%(EXT)s'),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- BitStringType ------------------------------------------------------------
class BitStringType (Type):
def to_python (self, ctx):
return "asn1.BITSTRING_class ([%s])" % (",".join (
[x.to_python (ctx) for x in self.named_list]))
def eth_tname(self):
if self.named_list:
return Type.eth_tname(self)
elif not self.HasConstraint():
return 'BIT_STRING'
elif self.constr.IsSize():
return 'BIT_STRING' + '_' + self.constr.eth_constrname()
else:
return '#' + self.type + '_' + str(id(self))
def GetTTag(self, ectx):
return ('BER_CLASS_UNI', 'BER_UNI_TAG_BITSTRING')
def eth_ftype(self, ectx):
return ('FT_BYTES', 'BASE_NONE')
def eth_need_tree(self):
return self.named_list
def eth_need_pdu(self, ectx):
pdu = None
if self.HasContentsConstraint():
t = self.constr.GetContents(ectx)
if t and (ectx.default_containing_variant in ('_pdu', '_pdu_new')):
pdu = { 'type' : t,
'new' : ectx.default_containing_variant == '_pdu_new' }
return pdu
def eth_named_bits(self):
bits = []
if (self.named_list):
for e in (self.named_list):
bits.append((int(e.val), e.ident))
return bits
def eth_type_default_pars(self, ectx, tname):
pars = Type.eth_type_default_pars(self, ectx, tname)
pars['LEN_PTR'] = 'NULL'
(pars['MIN_VAL'], pars['MAX_VAL'], pars['EXT']) = self.eth_get_size_constr(ectx)
if 'ETT_INDEX' not in pars:
pars['ETT_INDEX'] = '-1'
pars['TABLE'] = 'NULL'
if self.eth_named_bits():
pars['TABLE'] = '%(PROTOP)s%(TNAME)s_bits'
if self.HasContentsConstraint():
pars['FN_VARIANT'] = ectx.default_containing_variant
t = self.constr.GetContents(ectx)
if t:
if pars['FN_VARIANT'] in ('_pdu', '_pdu_new'):
t = ectx.field[t]['ethname']
pars['TYPE_REF_PROTO'] = ''
pars['TYPE_REF_TNAME'] = t
pars['TYPE_REF_FN'] = 'dissect_%(TYPE_REF_TNAME)s'
else:
t = ectx.type[t]['ethname']
pars['TYPE_REF_PROTO'] = ectx.eth_type[t]['proto']
pars['TYPE_REF_TNAME'] = t
pars['TYPE_REF_FN'] = 'dissect_%(TYPE_REF_PROTO)s_%(TYPE_REF_TNAME)s'
else:
pars['TYPE_REF_FN'] = 'NULL'
return pars
def eth_type_default_table(self, ectx, tname):
#print "eth_type_default_table(tname='%s')" % (tname)
table = ''
bits = self.eth_named_bits()
if (bits and ectx.Ber()):
table = ectx.eth_bits(tname, bits)
return table
def eth_type_default_body(self, ectx, tname):
if (ectx.Ber()):
if (ectx.constraints_check and self.HasSizeConstraint()):
body = ectx.eth_fn_call('dissect_%(ER)s_constrained_bitstring', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(TABLE)s', '%(HF_INDEX)s', '%(ETT_INDEX)s',),
('%(VAL_PTR)s',),))
else:
body = ectx.eth_fn_call('dissect_%(ER)s_bitstring', ret='offset',
par=(('%(IMPLICIT_TAG)s', '%(ACTX)s', '%(TREE)s', '%(TVB)s', '%(OFFSET)s'),
('%(TABLE)s', '%(HF_INDEX)s', '%(ETT_INDEX)s',),
('%(VAL_PTR)s',),))
elif (ectx.Per()):
if self.HasContentsConstraint():
body = ectx.eth_fn_call('dissect_%(ER)s_bit_string_containing%(FN_VARIANT)s', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(EXT)s', '%(TYPE_REF_FN)s'),))
else:
body = ectx.eth_fn_call('dissect_%(ER)s_bit_string', ret='offset',
par=(('%(TVB)s', '%(OFFSET)s', '%(ACTX)s', '%(TREE)s', '%(HF_INDEX)s'),
('%(MIN_VAL)s', '%(MAX_VAL)s', '%(EXT)s', '%(VAL_PTR)s', '%(LEN_PTR)s'),))
else:
body = '#error Can not decode %s' % (tname)
return body
#--- BStringValue ------------------------------------------------------------
bstring_tab = {
'0000' : '0',
'0001' : '1',
'0010' : '2',
'0011' : '3',
'0100' : '4',
'0101' : '5',
'0110' : '6',
'0111' : '7',
'1000' : '8',
'1001' : '9',
'1010' : 'A',
'1011' : 'B',
'1100' : 'C',
'1101' : 'D',
'1110' : 'E',
'1111' : 'F',
}
class BStringValue (Value):
def to_str(self, ectx):
v = self.val[1:-2]
if len(v) % 8:
v += '0' * (8 - len(v) % 8)
vv = '0x'
for i in (list(range(0, len(v), 4))):
vv += bstring_tab[v[i:i+4]]
return vv
#--- HStringValue ------------------------------------------------------------
class HStringValue (Value):
def to_str(self, ectx):
vv = '0x'
vv += self.val[1:-2]
return vv
def __int__(self):
return int(self.val[1:-2], 16)
#--- FieldSpec ----------------------------------------------------------------
class FieldSpec (Node):
def __init__(self,*args, **kw) :
self.name = None
Node.__init__ (self,*args, **kw)
def SetName(self, name):
self.name = name
def get_repr(self):
return ['#UNSUPPORTED_' + self.type]
def fld_repr(self):
repr = [self.name]
repr.extend(self.get_repr())
return repr
class TypeFieldSpec (FieldSpec):
def get_repr(self):
return []
class FixedTypeValueFieldSpec (FieldSpec):
def get_repr(self):
if isinstance(self.typ, Type_Ref):
repr = ['TypeReference', self.typ.val]
else:
repr = [self.typ.type]
return repr
class VariableTypeValueFieldSpec (FieldSpec):
def get_repr(self):
return ['_' + self.type]
class FixedTypeValueSetFieldSpec (FieldSpec):
def get_repr(self):
return ['_' + self.type]
class ObjectFieldSpec (FieldSpec):
def get_repr(self):
return ['ClassReference', self.cls.val]
class ObjectSetFieldSpec (FieldSpec):
def get_repr(self):
return ['ClassReference', self.cls.val]
#==============================================================================
def p_module_list_1 (t):
'module_list : module_list ModuleDefinition'
t[0] = t[1] + [t[2]]
def p_module_list_2 (t):
'module_list : ModuleDefinition'
t[0] = [t[1]]
#--- ITU-T Recommendation X.680 -----------------------------------------------
# 11 ASN.1 lexical items --------------------------------------------------------
# 11.2 Type references
def p_type_ref (t):
'type_ref : UCASE_IDENT'
t[0] = Type_Ref(val=t[1])
# 11.3 Identifiers
def p_identifier (t):
'identifier : LCASE_IDENT'
t[0] = t[1]
# 11.4 Value references
# cause reduce/reduce conflict
#def p_valuereference (t):
# 'valuereference : LCASE_IDENT'
# t[0] = Value_Ref(val=t[1])
# 11.5 Module references
def p_modulereference (t):
'modulereference : UCASE_IDENT'
t[0] = t[1]
# 12 Module definition --------------------------------------------------------
# 12.1
def p_ModuleDefinition (t):
'ModuleDefinition : ModuleIdentifier DEFINITIONS TagDefault ASSIGNMENT ModuleBegin BEGIN ModuleBody END'
t[0] = Module (ident = t[1], tag_def = t[3], body = t[7])
def p_ModuleBegin (t):
'ModuleBegin : '
if t[-4].val == 'Remote-Operations-Information-Objects':
x880_module_begin()
def p_TagDefault_1 (t):
'''TagDefault : EXPLICIT TAGS
| IMPLICIT TAGS
| AUTOMATIC TAGS '''
t[0] = Default_Tags (dfl_tag = t[1])
def p_TagDefault_2 (t):
'TagDefault : '
# 12.2 The "TagDefault" is taken as EXPLICIT TAGS if it is "empty".
t[0] = Default_Tags (dfl_tag = 'EXPLICIT')
def p_ModuleIdentifier_1 (t):
'ModuleIdentifier : modulereference DefinitiveIdentifier' # name, oid
t [0] = Node('module_ident', val = t[1], ident = t[2])
def p_ModuleIdentifier_2 (t):
'ModuleIdentifier : modulereference' # name, oid
t [0] = Node('module_ident', val = t[1], ident = None)
def p_DefinitiveIdentifier (t):
'DefinitiveIdentifier : ObjectIdentifierValue'
t[0] = t[1]
#def p_module_ref (t):
# 'module_ref : UCASE_IDENT'
# t[0] = t[1]
def p_ModuleBody_1 (t):
'ModuleBody : Exports Imports AssignmentList'
t[0] = Module_Body (exports = t[1], imports = t[2], assign_list = t[3])
def p_ModuleBody_2 (t):
'ModuleBody : '
t[0] = Node ('module_body', exports = [], imports = [], assign_list = [])
def p_Exports_1 (t):
'Exports : EXPORTS syms_exported SEMICOLON'
t[0] = t[2]
def p_Exports_2 (t):
'Exports : EXPORTS ALL SEMICOLON'
t[0] = [ 'ALL' ]
def p_Exports_3 (t):
'Exports : '
t[0] = [ 'ALL' ]
def p_syms_exported_1 (t):
'syms_exported : exp_sym_list'
t[0] = t[1]
def p_syms_exported_2 (t):
'syms_exported : '
t[0] = []
def p_exp_sym_list_1 (t):
'exp_sym_list : Symbol'
t[0] = [t[1]]
def p_exp_sym_list_2 (t):
'exp_sym_list : exp_sym_list COMMA Symbol'
t[0] = t[1] + [t[3]]
def p_Imports_1 (t):
'Imports : importsbegin IMPORTS SymbolsImported SEMICOLON'
t[0] = t[3]
global lcase_ident_assigned
lcase_ident_assigned = {}
def p_importsbegin (t):
'importsbegin : '
global lcase_ident_assigned
global g_conform
lcase_ident_assigned = {}
lcase_ident_assigned.update(g_conform.use_item('ASSIGNED_ID', 'OBJECT_IDENTIFIER'))
def p_Imports_2 (t):
'Imports : '
t[0] = []
def p_SymbolsImported_1(t):
'SymbolsImported : '
t[0] = []
def p_SymbolsImported_2 (t):
'SymbolsImported : SymbolsFromModuleList'
t[0] = t[1]
def p_SymbolsFromModuleList_1 (t):
'SymbolsFromModuleList : SymbolsFromModuleList SymbolsFromModule'
t[0] = t[1] + [t[2]]
def p_SymbolsFromModuleList_2 (t):
'SymbolsFromModuleList : SymbolsFromModule'
t[0] = [t[1]]
def p_SymbolsFromModule (t):
'SymbolsFromModule : SymbolList FROM GlobalModuleReference'
t[0] = Node ('SymbolList', symbol_list = t[1], module = t[3])
for s in (t[0].symbol_list):
if (isinstance(s, Value_Ref)): lcase_ident_assigned[s.val] = t[3]
import_symbols_from_module(t[0].module, t[0].symbol_list)
def import_symbols_from_module(module, symbol_list):
if module.val == 'Remote-Operations-Information-Objects':
for i in range(len(symbol_list)):
s = symbol_list[i]
if isinstance(s, Type_Ref) or isinstance(s, Class_Ref):
x880_import(s.val)
if isinstance(s, Type_Ref) and is_class_ident(s.val):
symbol_list[i] = Class_Ref (val = s.val)
return
for i in range(len(symbol_list)):
s = symbol_list[i]
if isinstance(s, Type_Ref) and is_class_ident("$%s$%s" % (module.val, s.val)):
import_class_from_module(module.val, s.val)
if isinstance(s, Type_Ref) and is_class_ident(s.val):
symbol_list[i] = Class_Ref (val = s.val)
def p_GlobalModuleReference (t):
'GlobalModuleReference : modulereference AssignedIdentifier'
t [0] = Node('module_ident', val = t[1], ident = t[2])
def p_AssignedIdentifier_1 (t):
'AssignedIdentifier : ObjectIdentifierValue'
t[0] = t[1]
def p_AssignedIdentifier_2 (t):
'AssignedIdentifier : LCASE_IDENT_ASSIGNED'
t[0] = t[1]
def p_AssignedIdentifier_3 (t):
'AssignedIdentifier : '
pass
def p_SymbolList_1 (t):
'SymbolList : Symbol'
t[0] = [t[1]]
def p_SymbolList_2 (t):
'SymbolList : SymbolList COMMA Symbol'
t[0] = t[1] + [t[3]]
def p_Symbol (t):
'''Symbol : Reference
| ParameterizedReference'''
t[0] = t[1]
def p_Reference_1 (t):
'''Reference : type_ref
| objectclassreference '''
t[0] = t[1]
def p_Reference_2 (t):
'''Reference : LCASE_IDENT_ASSIGNED
| identifier ''' # instead of valuereference wich causes reduce/reduce conflict
t[0] = Value_Ref(val=t[1])
def p_AssignmentList_1 (t):
'AssignmentList : AssignmentList Assignment'
t[0] = t[1] + [t[2]]
def p_AssignmentList_2 (t):
'AssignmentList : Assignment SEMICOLON'
t[0] = [t[1]]
def p_AssignmentList_3 (t):
'AssignmentList : Assignment'
t[0] = [t[1]]
def p_Assignment (t):
'''Assignment : TypeAssignment
| ValueAssignment
| ValueSetTypeAssignment
| ObjectClassAssignment
| ObjectAssignment
| ObjectSetAssignment
| ParameterizedAssignment
| pyquote '''
t[0] = t[1]
# 13 Referencing type and value definitions -----------------------------------
# 13.1
def p_DefinedType (t):
'''DefinedType : ExternalTypeReference
| type_ref
| ParameterizedType'''
t[0] = t[1]
def p_DefinedValue_1(t):
'''DefinedValue : ExternalValueReference'''
t[0] = t[1]
def p_DefinedValue_2(t):
'''DefinedValue : identifier ''' # instead of valuereference wich causes reduce/reduce conflict
t[0] = Value_Ref(val=t[1])
# 13.6
def p_ExternalTypeReference (t):
'ExternalTypeReference : modulereference DOT type_ref'
t[0] = Node ('ExternalTypeReference', module = t[1], typ = t[3])
def p_ExternalValueReference (t):
'ExternalValueReference : modulereference DOT identifier'
t[0] = Node ('ExternalValueReference', module = t[1], ident = t[3])
# 15 Assigning types and values -----------------------------------------------
# 15.1
def p_TypeAssignment (t):
'TypeAssignment : UCASE_IDENT ASSIGNMENT Type'
t[0] = t[3]
t[0].SetName(t[1])
# 15.2
def p_ValueAssignment (t):
'ValueAssignment : LCASE_IDENT ValueType ASSIGNMENT Value'
t[0] = ValueAssignment(ident = t[1], typ = t[2], val = t[4])
# only "simple" types are supported to simplify grammer
def p_ValueType (t):
'''ValueType : type_ref
| BooleanType
| IntegerType
| ObjectIdentifierType
| OctetStringType
| RealType '''
t[0] = t[1]
# 15.6
def p_ValueSetTypeAssignment (t):
'ValueSetTypeAssignment : UCASE_IDENT ValueType ASSIGNMENT ValueSet'
t[0] = Node('ValueSetTypeAssignment', name=t[1], typ=t[2], val=t[4])
# 15.7
def p_ValueSet (t):
'ValueSet : lbraceignore rbraceignore'
t[0] = None
# 16 Definition of types and values -------------------------------------------
# 16.1
def p_Type (t):
'''Type : BuiltinType
| ReferencedType
| ConstrainedType'''
t[0] = t[1]
# 16.2
def p_BuiltinType (t):
'''BuiltinType : AnyType
| BitStringType
| BooleanType
| CharacterStringType
| ChoiceType
| EmbeddedPDVType
| EnumeratedType
| ExternalType
| InstanceOfType
| IntegerType
| NullType
| ObjectClassFieldType
| ObjectIdentifierType
| OctetStringType
| RealType
| RelativeOIDType
| SequenceType
| SequenceOfType
| SetType
| SetOfType
| TaggedType'''
t[0] = t[1]
# 16.3
def p_ReferencedType (t):
'''ReferencedType : DefinedType
| UsefulType
| SelectionType'''
t[0] = t[1]
# 16.5
def p_NamedType (t):
'NamedType : identifier Type'
t[0] = t[2]
t[0].SetName (t[1])
# 16.7
def p_Value (t):
'''Value : BuiltinValue
| ReferencedValue
| ObjectClassFieldValue'''
t[0] = t[1]
# 16.9
def p_BuiltinValue (t):
'''BuiltinValue : BooleanValue
| ChoiceValue
| IntegerValue
| ObjectIdentifierValue
| RealValue
| SequenceValue
| hex_string
| binary_string
| char_string''' # XXX we don't support {data} here
t[0] = t[1]
# 16.11
def p_ReferencedValue (t):
'''ReferencedValue : DefinedValue
| ValueFromObject'''
t[0] = t[1]
# 16.13
#def p_NamedValue (t):
# 'NamedValue : identifier Value'
# t[0] = Node ('NamedValue', ident = t[1], value = t[2])
# 17 Notation for the boolean type --------------------------------------------
# 17.1
def p_BooleanType (t):
'BooleanType : BOOLEAN'
t[0] = BooleanType ()
# 17.2
def p_BooleanValue (t):
'''BooleanValue : TRUE
| FALSE'''
t[0] = t[1]
# 18 Notation for the integer type --------------------------------------------
# 18.1
def p_IntegerType_1 (t):
'IntegerType : INTEGER'
t[0] = IntegerType (named_list = None)
def p_IntegerType_2 (t):
'IntegerType : INTEGER LBRACE NamedNumberList RBRACE'
t[0] = IntegerType(named_list = t[3])
def p_NamedNumberList_1 (t):
'NamedNumberList : NamedNumber'
t[0] = [t[1]]
def p_NamedNumberList_2 (t):
'NamedNumberList : NamedNumberList COMMA NamedNumber'
t[0] = t[1] + [t[3]]
def p_NamedNumber (t):
'''NamedNumber : identifier LPAREN SignedNumber RPAREN
| identifier LPAREN DefinedValue RPAREN'''
t[0] = NamedNumber(ident = t[1], val = t[3])
def p_SignedNumber_1 (t):
'SignedNumber : NUMBER'
t[0] = t [1]
def p_SignedNumber_2 (t):
'SignedNumber : MINUS NUMBER'
t[0] = '-' + t[2]
# 18.9
def p_IntegerValue (t):
'IntegerValue : SignedNumber'
t[0] = t [1]
# 19 Notation for the enumerated type -----------------------------------------
# 19.1
def p_EnumeratedType (t):
'EnumeratedType : ENUMERATED LBRACE Enumerations RBRACE'
t[0] = EnumeratedType (val = t[3]['val'], ext = t[3]['ext'])
def p_Enumerations_1 (t):
'Enumerations : Enumeration'
t[0] = { 'val' : t[1], 'ext' : None }
def p_Enumerations_2 (t):
'Enumerations : Enumeration COMMA ELLIPSIS ExceptionSpec'
t[0] = { 'val' : t[1], 'ext' : [] }
def p_Enumerations_3 (t):
'Enumerations : Enumeration COMMA ELLIPSIS ExceptionSpec COMMA Enumeration'
t[0] = { 'val' : t[1], 'ext' : t[6] }
def p_Enumeration_1 (t):
'Enumeration : EnumerationItem'
t[0] = [t[1]]
def p_Enumeration_2 (t):
'Enumeration : Enumeration COMMA EnumerationItem'
t[0] = t[1] + [t[3]]
def p_EnumerationItem (t):
'''EnumerationItem : Identifier
| NamedNumber'''
t[0] = t[1]
def p_Identifier (t):
'Identifier : identifier'
t[0] = Node ('Identifier', ident = t[1])
# 20 Notation for the real type -----------------------------------------------
# 20.1
def p_RealType (t):
'RealType : REAL'
t[0] = RealType ()
# 20.6
def p_RealValue (t):
'''RealValue : REAL_NUMBER
| SpecialRealValue'''
t[0] = t [1]
def p_SpecialRealValue (t):
'''SpecialRealValue : PLUS_INFINITY
| MINUS_INFINITY'''
t[0] = t[1]
# 21 Notation for the bitstring type ------------------------------------------
# 21.1
def p_BitStringType_1 (t):
'BitStringType : BIT STRING'
t[0] = BitStringType (named_list = None)
def p_BitStringType_2 (t):
'BitStringType : BIT STRING LBRACE NamedBitList RBRACE'
t[0] = BitStringType (named_list = t[4])
def p_NamedBitList_1 (t):
'NamedBitList : NamedBit'
t[0] = [t[1]]
def p_NamedBitList_2 (t):
'NamedBitList : NamedBitList COMMA NamedBit'
t[0] = t[1] + [t[3]]
def p_NamedBit (t):
'''NamedBit : identifier LPAREN NUMBER RPAREN
| identifier LPAREN DefinedValue RPAREN'''
t[0] = NamedNumber (ident = t[1], val = t[3])
# 22 Notation for the octetstring type ----------------------------------------
# 22.1
def p_OctetStringType (t):
'OctetStringType : OCTET STRING'
t[0] = OctetStringType ()
# 23 Notation for the null type -----------------------------------------------
# 23.1
def p_NullType (t):
'NullType : NULL'
t[0] = NullType ()
# 23.3
def p_NullValue (t):
'NullValue : NULL'
t[0] = NullValue ()
# 24 Notation for sequence types ----------------------------------------------
# 24.1
def p_SequenceType_1 (t):
'SequenceType : SEQUENCE LBRACE RBRACE'
t[0] = SequenceType (elt_list = [])
def p_SequenceType_2 (t):
'SequenceType : SEQUENCE LBRACE ComponentTypeLists RBRACE'
t[0] = SequenceType (elt_list = t[3]['elt_list'])
if 'ext_list' in t[3]:
t[0].ext_list = t[3]['ext_list']
if 'elt_list2' in t[3]:
t[0].elt_list2 = t[3]['elt_list2']
def p_ExtensionAndException_1 (t):
'ExtensionAndException : ELLIPSIS'
t[0] = []
def p_OptionalExtensionMarker_1 (t):
'OptionalExtensionMarker : COMMA ELLIPSIS'
t[0] = True
def p_OptionalExtensionMarker_2 (t):
'OptionalExtensionMarker : '
t[0] = False
def p_ComponentTypeLists_1 (t):
'ComponentTypeLists : ComponentTypeList'
t[0] = {'elt_list' : t[1]}
def p_ComponentTypeLists_2 (t):
'ComponentTypeLists : ComponentTypeList COMMA ExtensionAndException OptionalExtensionMarker'
t[0] = {'elt_list' : t[1], 'ext_list' : []}
def p_ComponentTypeLists_3 (t):
'ComponentTypeLists : ComponentTypeList COMMA ExtensionAndException ExtensionAdditionList OptionalExtensionMarker'
t[0] = {'elt_list' : t[1], 'ext_list' : t[4]}
def p_ComponentTypeLists_4 (t):
'ComponentTypeLists : ComponentTypeList COMMA ExtensionAndException ExtensionEndMarker COMMA ComponentTypeList'
t[0] = {'elt_list' : t[1], 'ext_list' : [], 'elt_list2' : t[6]}
def p_ComponentTypeLists_5 (t):
'ComponentTypeLists : ComponentTypeList COMMA ExtensionAndException ExtensionAdditionList ExtensionEndMarker COMMA ComponentTypeList'
t[0] = {'elt_list' : t[1], 'ext_list' : t[4], 'elt_list2' : t[7]}
def p_ComponentTypeLists_6 (t):
'ComponentTypeLists : ExtensionAndException OptionalExtensionMarker'
t[0] = {'elt_list' : [], 'ext_list' : []}
def p_ComponentTypeLists_7 (t):
'ComponentTypeLists : ExtensionAndException ExtensionAdditionList OptionalExtensionMarker'
t[0] = {'elt_list' : [], 'ext_list' : t[2]}
def p_ExtensionEndMarker (t):
'ExtensionEndMarker : COMMA ELLIPSIS'
pass
def p_ExtensionAdditionList_1 (t):
'ExtensionAdditionList : COMMA ExtensionAddition'
t[0] = [t[2]]
def p_ExtensionAdditionList_2 (t):
'ExtensionAdditionList : ExtensionAdditionList COMMA ExtensionAddition'
t[0] = t[1] + [t[3]]
def p_ExtensionAddition_1 (t):
'ExtensionAddition : ExtensionAdditionGroup'
t[0] = Node ('elt_type', val = t[1], optional = 0)
def p_ExtensionAddition_2 (t):
'ExtensionAddition : ComponentType'
t[0] = t[1]
def p_ExtensionAdditionGroup (t):
'ExtensionAdditionGroup : LVERBRACK VersionNumber ComponentTypeList RVERBRACK'
t[0] = ExtensionAdditionGroup (ver = t[2], elt_list = t[3])
def p_VersionNumber_1 (t):
'VersionNumber : '
def p_VersionNumber_2 (t):
'VersionNumber : NUMBER COLON'
t[0] = t[1]
def p_ComponentTypeList_1 (t):
'ComponentTypeList : ComponentType'
t[0] = [t[1]]
def p_ComponentTypeList_2 (t):
'ComponentTypeList : ComponentTypeList COMMA ComponentType'
t[0] = t[1] + [t[3]]
def p_ComponentType_1 (t):
'ComponentType : NamedType'
t[0] = Node ('elt_type', val = t[1], optional = 0)
def p_ComponentType_2 (t):
'ComponentType : NamedType OPTIONAL'
t[0] = Node ('elt_type', val = t[1], optional = 1)
def p_ComponentType_3 (t):
'ComponentType : NamedType DEFAULT DefaultValue'
t[0] = Node ('elt_type', val = t[1], optional = 1, default = t[3])
def p_ComponentType_4 (t):
'ComponentType : COMPONENTS OF Type'
t[0] = Node ('components_of', typ = t[3])
def p_DefaultValue_1 (t):
'''DefaultValue : ReferencedValue
| BooleanValue
| ChoiceValue
| IntegerValue
| RealValue
| hex_string
| binary_string
| char_string
| ObjectClassFieldValue'''
t[0] = t[1]
def p_DefaultValue_2 (t):
'DefaultValue : lbraceignore rbraceignore'
t[0] = ''
# 24.17
def p_SequenceValue_1 (t):
'SequenceValue : LBRACE RBRACE'
t[0] = []
#def p_SequenceValue_2 (t):
# 'SequenceValue : LBRACE ComponentValueList RBRACE'
# t[0] = t[2]
#def p_ComponentValueList_1 (t):
# 'ComponentValueList : NamedValue'
# t[0] = [t[1]]
#def p_ComponentValueList_2 (t):
# 'ComponentValueList : ComponentValueList COMMA NamedValue'
# t[0] = t[1] + [t[3]]
# 25 Notation for sequence-of types -------------------------------------------
# 25.1
def p_SequenceOfType (t):
'''SequenceOfType : SEQUENCE OF Type
| SEQUENCE OF NamedType'''
t[0] = SequenceOfType (val = t[3], size_constr = None)
# 26 Notation for set types ---------------------------------------------------
# 26.1
def p_SetType_1 (t):
'SetType : SET LBRACE RBRACE'
t[0] = SetType (elt_list = [])
def p_SetType_2 (t):
'SetType : SET LBRACE ComponentTypeLists RBRACE'
t[0] = SetType (elt_list = t[3]['elt_list'])
if 'ext_list' in t[3]:
t[0].ext_list = t[3]['ext_list']
if 'elt_list2' in t[3]:
t[0].elt_list2 = t[3]['elt_list2']
# 27 Notation for set-of types ------------------------------------------------
# 27.1
def p_SetOfType (t):
'''SetOfType : SET OF Type
| SET OF NamedType'''
t[0] = SetOfType (val = t[3])
# 28 Notation for choice types ------------------------------------------------
# 28.1
def p_ChoiceType (t):
'ChoiceType : CHOICE LBRACE AlternativeTypeLists RBRACE'
if 'ext_list' in t[3]:
t[0] = ChoiceType (elt_list = t[3]['elt_list'], ext_list = t[3]['ext_list'])
else:
t[0] = ChoiceType (elt_list = t[3]['elt_list'])
def p_AlternativeTypeLists_1 (t):
'AlternativeTypeLists : AlternativeTypeList'
t[0] = {'elt_list' : t[1]}
def p_AlternativeTypeLists_2 (t):
'AlternativeTypeLists : AlternativeTypeList COMMA ExtensionAndException ExtensionAdditionAlternatives OptionalExtensionMarker'
t[0] = {'elt_list' : t[1], 'ext_list' : t[4]}
def p_ExtensionAdditionAlternatives_1 (t):
'ExtensionAdditionAlternatives : ExtensionAdditionAlternativesList'
t[0] = t[1]
def p_ExtensionAdditionAlternatives_2 (t):
'ExtensionAdditionAlternatives : '
t[0] = []
def p_ExtensionAdditionAlternativesList_1 (t):
'ExtensionAdditionAlternativesList : COMMA ExtensionAdditionAlternative'
t[0] = t[2]
def p_ExtensionAdditionAlternativesList_2 (t):
'ExtensionAdditionAlternativesList : ExtensionAdditionAlternativesList COMMA ExtensionAdditionAlternative'
t[0] = t[1] + t[3]
def p_ExtensionAdditionAlternative_1 (t):
'ExtensionAdditionAlternative : NamedType'
t[0] = [t[1]]
def p_ExtensionAdditionAlternative_2 (t):
'ExtensionAdditionAlternative : ExtensionAdditionAlternativesGroup'
t[0] = t[1]
def p_ExtensionAdditionAlternativesGroup (t):
'ExtensionAdditionAlternativesGroup : LVERBRACK VersionNumber AlternativeTypeList RVERBRACK'
t[0] = t[3]
def p_AlternativeTypeList_1 (t):
'AlternativeTypeList : NamedType'
t[0] = [t[1]]
def p_AlternativeTypeList_2 (t):
'AlternativeTypeList : AlternativeTypeList COMMA NamedType'
t[0] = t[1] + [t[3]]
# 28.10
def p_ChoiceValue_1 (t):
'''ChoiceValue : identifier COLON Value
| identifier COLON NullValue '''
val = t[3]
if not isinstance(val, Value):
val = Value(val=val)
t[0] = ChoiceValue (choice = t[1], val = val)
# 29 Notation for selection types
# 29.1
def p_SelectionType (t): #
'SelectionType : identifier LT Type'
t[0] = SelectionType (typ = t[3], sel = t[1])
# 30 Notation for tagged types ------------------------------------------------
# 30.1
def p_TaggedType_1 (t):
'TaggedType : Tag Type'
t[1].mode = 'default'
t[0] = t[2]
t[0].AddTag(t[1])
def p_TaggedType_2 (t):
'''TaggedType : Tag IMPLICIT Type
| Tag EXPLICIT Type'''
t[1].mode = t[2]
t[0] = t[3]
t[0].AddTag(t[1])
def p_Tag (t):
'Tag : LBRACK Class ClassNumber RBRACK'
t[0] = Tag(cls = t[2], num = t[3])
def p_ClassNumber_1 (t):
'ClassNumber : number'
t[0] = t[1]
def p_ClassNumber_2 (t):
'ClassNumber : DefinedValue'
t[0] = t[1]
def p_Class_1 (t):
'''Class : UNIVERSAL
| APPLICATION
| PRIVATE'''
t[0] = t[1]
def p_Class_2 (t):
'Class :'
t[0] = 'CONTEXT'
# 31 Notation for the object identifier type ----------------------------------
# 31.1
def p_ObjectIdentifierType (t):
'ObjectIdentifierType : OBJECT IDENTIFIER'
t[0] = ObjectIdentifierType()
# 31.3
def p_ObjectIdentifierValue (t):
'ObjectIdentifierValue : LBRACE oid_comp_list RBRACE'
t[0] = ObjectIdentifierValue (comp_list=t[2])
def p_oid_comp_list_1 (t):
'oid_comp_list : oid_comp_list ObjIdComponents'
t[0] = t[1] + [t[2]]
def p_oid_comp_list_2 (t):
'oid_comp_list : ObjIdComponents'
t[0] = [t[1]]
def p_ObjIdComponents (t):
'''ObjIdComponents : NameForm
| NumberForm
| NameAndNumberForm'''
t[0] = t[1]
def p_NameForm (t):
'''NameForm : LCASE_IDENT
| LCASE_IDENT_ASSIGNED'''
t [0] = t[1]
def p_NumberForm (t):
'''NumberForm : NUMBER'''
# | DefinedValue'''
t [0] = t[1]
def p_NameAndNumberForm (t):
'''NameAndNumberForm : LCASE_IDENT_ASSIGNED LPAREN NumberForm RPAREN
| LCASE_IDENT LPAREN NumberForm RPAREN'''
t[0] = Node('name_and_number', ident = t[1], number = t[3])
# 32 Notation for the relative object identifier type -------------------------
# 32.1
def p_RelativeOIDType (t):
'RelativeOIDType : RELATIVE_OID'
t[0] = RelativeOIDType()
# 33 Notation for the embedded-pdv type ---------------------------------------
# 33.1
def p_EmbeddedPDVType (t):
'EmbeddedPDVType : EMBEDDED PDV'
t[0] = EmbeddedPDVType()
# 34 Notation for the external type -------------------------------------------
# 34.1
def p_ExternalType (t):
'ExternalType : EXTERNAL'
t[0] = ExternalType()
# 36 Notation for character string types --------------------------------------
# 36.1
def p_CharacterStringType (t):
'''CharacterStringType : RestrictedCharacterStringType
| UnrestrictedCharacterStringType'''
t[0] = t[1]
# 37 Definition of restricted character string types --------------------------
def p_RestrictedCharacterStringType_1 (t):
'RestrictedCharacterStringType : BMPString'
t[0] = BMPStringType ()
def p_RestrictedCharacterStringType_2 (t):
'RestrictedCharacterStringType : GeneralString'
t[0] = GeneralStringType ()
def p_RestrictedCharacterStringType_3 (t):
'RestrictedCharacterStringType : GraphicString'
t[0] = GraphicStringType ()
def p_RestrictedCharacterStringType_4 (t):
'RestrictedCharacterStringType : IA5String'
t[0] = IA5StringType ()
def p_RestrictedCharacterStringType_5 (t):
'RestrictedCharacterStringType : ISO646String'
t[0] = ISO646StringType ()
def p_RestrictedCharacterStringType_6 (t):
'RestrictedCharacterStringType : NumericString'
t[0] = NumericStringType ()
def p_RestrictedCharacterStringType_7 (t):
'RestrictedCharacterStringType : PrintableString'
t[0] = PrintableStringType ()
def p_RestrictedCharacterStringType_8 (t):
'RestrictedCharacterStringType : TeletexString'
t[0] = TeletexStringType ()
def p_RestrictedCharacterStringType_9 (t):
'RestrictedCharacterStringType : T61String'
t[0] = T61StringType ()
def p_RestrictedCharacterStringType_10 (t):
'RestrictedCharacterStringType : UniversalString'
t[0] = UniversalStringType ()
def p_RestrictedCharacterStringType_11 (t):
'RestrictedCharacterStringType : UTF8String'
t[0] = UTF8StringType ()
def p_RestrictedCharacterStringType_12 (t):
'RestrictedCharacterStringType : VideotexString'
t[0] = VideotexStringType ()
def p_RestrictedCharacterStringType_13 (t):
'RestrictedCharacterStringType : VisibleString'
t[0] = VisibleStringType ()
# 40 Definition of unrestricted character string types ------------------------
# 40.1
def p_UnrestrictedCharacterStringType (t):
'UnrestrictedCharacterStringType : CHARACTER STRING'
t[0] = UnrestrictedCharacterStringType ()
# 41 Notation for types defined in clauses 42 to 44 ---------------------------
# 42 Generalized time ---------------------------------------------------------
def p_UsefulType_1 (t):
'UsefulType : GeneralizedTime'
t[0] = GeneralizedTime()
# 43 Universal time -----------------------------------------------------------
def p_UsefulType_2 (t):
'UsefulType : UTCTime'
t[0] = UTCTime()
# 44 The object descriptor type -----------------------------------------------
def p_UsefulType_3 (t):
'UsefulType : ObjectDescriptor'
t[0] = ObjectDescriptor()
# 45 Constrained types --------------------------------------------------------
# 45.1
def p_ConstrainedType_1 (t):
'ConstrainedType : Type Constraint'
t[0] = t[1]
t[0].AddConstraint(t[2])
def p_ConstrainedType_2 (t):
'ConstrainedType : TypeWithConstraint'
t[0] = t[1]
# 45.5
def p_TypeWithConstraint_1 (t):
'''TypeWithConstraint : SET Constraint OF Type
| SET SizeConstraint OF Type'''
t[0] = SetOfType (val = t[4], constr = t[2])
def p_TypeWithConstraint_2 (t):
'''TypeWithConstraint : SEQUENCE Constraint OF Type
| SEQUENCE SizeConstraint OF Type'''
t[0] = SequenceOfType (val = t[4], constr = t[2])
def p_TypeWithConstraint_3 (t):
'''TypeWithConstraint : SET Constraint OF NamedType
| SET SizeConstraint OF NamedType'''
t[0] = SetOfType (val = t[4], constr = t[2])
def p_TypeWithConstraint_4 (t):
'''TypeWithConstraint : SEQUENCE Constraint OF NamedType
| SEQUENCE SizeConstraint OF NamedType'''
t[0] = SequenceOfType (val = t[4], constr = t[2])
# 45.6
# 45.7
def p_Constraint (t):
'Constraint : LPAREN ConstraintSpec ExceptionSpec RPAREN'
t[0] = t[2]
def p_ConstraintSpec (t):
'''ConstraintSpec : ElementSetSpecs
| GeneralConstraint'''
t[0] = t[1]
# 46 Element set specification ------------------------------------------------
# 46.1
def p_ElementSetSpecs_1 (t):
'ElementSetSpecs : RootElementSetSpec'
t[0] = t[1]
def p_ElementSetSpecs_2 (t):
'ElementSetSpecs : RootElementSetSpec COMMA ELLIPSIS'
t[0] = t[1]
t[0].ext = True
def p_ElementSetSpecs_3 (t):
'ElementSetSpecs : RootElementSetSpec COMMA ELLIPSIS COMMA AdditionalElementSetSpec'
t[0] = t[1]
t[0].ext = True
def p_RootElementSetSpec (t):
'RootElementSetSpec : ElementSetSpec'
t[0] = t[1]
def p_AdditionalElementSetSpec (t):
'AdditionalElementSetSpec : ElementSetSpec'
t[0] = t[1]
def p_ElementSetSpec (t):
'ElementSetSpec : Unions'
t[0] = t[1]
def p_Unions_1 (t):
'Unions : Intersections'
t[0] = t[1]
def p_Unions_2 (t):
'Unions : UElems UnionMark Intersections'
t[0] = Constraint(type = 'Union', subtype = [t[1], t[3]])
def p_UElems (t):
'UElems : Unions'
t[0] = t[1]
def p_Intersections_1 (t):
'Intersections : IntersectionElements'
t[0] = t[1]
def p_Intersections_2 (t):
'Intersections : IElems IntersectionMark IntersectionElements'
t[0] = Constraint(type = 'Intersection', subtype = [t[1], t[3]])
def p_IElems (t):
'IElems : Intersections'
t[0] = t[1]
def p_IntersectionElements (t):
'IntersectionElements : Elements'
t[0] = t[1]
def p_UnionMark (t):
'''UnionMark : BAR
| UNION'''
def p_IntersectionMark (t):
'''IntersectionMark : CIRCUMFLEX
| INTERSECTION'''
# 46.5
def p_Elements_1 (t):
'Elements : SubtypeElements'
t[0] = t[1]
def p_Elements_2 (t):
'Elements : LPAREN ElementSetSpec RPAREN'
t[0] = t[2]
# 47 Subtype elements ---------------------------------------------------------
# 47.1 General
def p_SubtypeElements (t):
'''SubtypeElements : SingleValue
| ContainedSubtype
| ValueRange
| PermittedAlphabet
| SizeConstraint
| TypeConstraint
| InnerTypeConstraints
| PatternConstraint'''
t[0] = t[1]
# 47.2 Single value
# 47.2.1
def p_SingleValue (t):
'SingleValue : Value'
t[0] = Constraint(type = 'SingleValue', subtype = t[1])
# 47.3 Contained subtype
# 47.3.1
def p_ContainedSubtype (t):
'ContainedSubtype : Includes Type'
t[0] = Constraint(type = 'ContainedSubtype', subtype = t[2])
def p_Includes (t):
'''Includes : INCLUDES
| '''
# 47.4 Value range
# 47.4.1
def p_ValueRange (t):
'ValueRange : LowerEndpoint RANGE UpperEndpoint'
t[0] = Constraint(type = 'ValueRange', subtype = [t[1], t[3]])
# 47.4.3
def p_LowerEndpoint_1 (t):
'LowerEndpoint : LowerEndValue'
t[0] = t[1]
def p_LowerEndpoint_2 (t):
'LowerEndpoint : LowerEndValue LT'
t[0] = t[1] # but not inclusive range
def p_UpperEndpoint_1 (t):
'UpperEndpoint : UpperEndValue'
t[0] = t[1]
def p_UpperEndpoint_2 (t):
'UpperEndpoint : LT UpperEndValue'
t[0] = t[1] # but not inclusive range
# 47.4.4
def p_LowerEndValue (t):
'''LowerEndValue : Value
| MIN'''
t[0] = t[1] # XXX
def p_UpperEndValue (t):
'''UpperEndValue : Value
| MAX'''
t[0] = t[1]
# 47.5 Size constraint
# 47.5.1
def p_SizeConstraint (t):
'SizeConstraint : SIZE Constraint'
t[0] = Constraint (type = 'Size', subtype = t[2])
# 47.6 Type constraint
# 47.6.1
def p_TypeConstraint (t):
'TypeConstraint : Type'
t[0] = Constraint (type = 'Type', subtype = t[1])
# 47.7 Permitted alphabet
# 47.7.1
def p_PermittedAlphabet (t):
'PermittedAlphabet : FROM Constraint'
t[0] = Constraint (type = 'From', subtype = t[2])
# 47.8 Inner subtyping
# 47.8.1
def p_InnerTypeConstraints (t):
'''InnerTypeConstraints : WITH COMPONENT SingleTypeConstraint
| WITH COMPONENTS MultipleTypeConstraints'''
pass # ignore PER invisible constraint
# 47.8.3
def p_SingleTypeConstraint (t):
'SingleTypeConstraint : Constraint'
t[0] = t[1]
# 47.8.4
def p_MultipleTypeConstraints (t):
'''MultipleTypeConstraints : FullSpecification
| PartialSpecification'''
t[0] = t[1]
def p_FullSpecification (t):
'FullSpecification : LBRACE TypeConstraints RBRACE'
t[0] = t[2]
def p_PartialSpecification (t):
'PartialSpecification : LBRACE ELLIPSIS COMMA TypeConstraints RBRACE'
t[0] = t[4]
def p_TypeConstraints_1 (t):
'TypeConstraints : named_constraint'
t [0] = [t[1]]
def p_TypeConstraints_2 (t):
'TypeConstraints : TypeConstraints COMMA named_constraint'
t[0] = t[1] + [t[3]]
def p_named_constraint_1 (t):
'named_constraint : identifier constraint'
return Node ('named_constraint', ident = t[1], constr = t[2])
def p_named_constraint_2 (t):
'named_constraint : constraint'
return Node ('named_constraint', constr = t[1])
def p_constraint (t):
'constraint : value_constraint presence_constraint'
t[0] = Node ('constraint', value = t[1], presence = t[2])
def p_value_constraint_1 (t):
'value_constraint : Constraint'
t[0] = t[1]
def p_value_constraint_2 (t):
'value_constraint : '
pass
def p_presence_constraint_1 (t):
'''presence_constraint : PRESENT
| ABSENT
| OPTIONAL'''
t[0] = t[1]
def p_presence_constraint_2 (t):
'''presence_constraint : '''
pass
# 47.9 Pattern constraint
# 47.9.1
def p_PatternConstraint (t):
'PatternConstraint : PATTERN Value'
t[0] = Constraint (type = 'Pattern', subtype = t[2])
# 49 The exception identifier
# 49.4
def p_ExceptionSpec_1 (t):
'ExceptionSpec : EXCLAMATION ExceptionIdentification'
pass
def p_ExceptionSpec_2 (t):
'ExceptionSpec : '
pass
def p_ExceptionIdentification (t):
'''ExceptionIdentification : SignedNumber
| DefinedValue
| Type COLON Value '''
pass
# /*-----------------------------------------------------------------------*/
# /* Value Notation Productions */
# /*-----------------------------------------------------------------------*/
def p_binary_string (t):
'binary_string : BSTRING'
t[0] = BStringValue(val = t[1])
def p_hex_string (t):
'hex_string : HSTRING'
t[0] = HStringValue(val = t[1])
def p_char_string (t):
'char_string : QSTRING'
t[0] = t[1]
def p_number (t):
'number : NUMBER'
t[0] = t[1]
#--- ITU-T Recommendation X.208 -----------------------------------------------
# 27 Notation for the any type ------------------------------------------------
# 27.1
def p_AnyType (t):
'''AnyType : ANY
| ANY DEFINED BY identifier'''
t[0] = AnyType()
#--- ITU-T Recommendation X.681 -----------------------------------------------
# 7 ASN.1 lexical items -------------------------------------------------------
# 7.1 Information object class references
def p_objectclassreference (t):
'objectclassreference : CLASS_IDENT'
t[0] = Class_Ref(val=t[1])
# 7.2 Information object references
def p_objectreference (t):
'objectreference : LCASE_IDENT'
t[0] = t[1]
# 7.3 Information object set references
#def p_objectsetreference (t):
# 'objectsetreference : UCASE_IDENT'
# t[0] = t[1]
# 7.4 Type field references
# ucasefieldreference
# 7.5 Value field references
# lcasefieldreference
# 7.6 Value set field references
# ucasefieldreference
# 7.7 Object field references
# lcasefieldreference
# 7.8 Object set field references
# ucasefieldreference
def p_ucasefieldreference (t):
'ucasefieldreference : AMPERSAND UCASE_IDENT'
t[0] = '&' + t[2]
def p_lcasefieldreference (t):
'lcasefieldreference : AMPERSAND LCASE_IDENT'
t[0] = '&' + t[2]
# 8 Referencing definitions
# 8.1
def p_DefinedObjectClass (t):
'''DefinedObjectClass : objectclassreference
| UsefulObjectClassReference'''
t[0] = t[1]
global obj_class
obj_class = t[0].val
def p_DefinedObject (t):
'''DefinedObject : objectreference'''
t[0] = t[1]
# 8.4
def p_UsefulObjectClassReference (t):
'''UsefulObjectClassReference : TYPE_IDENTIFIER
| ABSTRACT_SYNTAX'''
t[0] = Class_Ref(val=t[1])
# 9 Information object class definition and assignment
# 9.1
def p_ObjectClassAssignment (t):
'''ObjectClassAssignment : CLASS_IDENT ASSIGNMENT ObjectClass
| UCASE_IDENT ASSIGNMENT ObjectClass'''
t[0] = t[3]
t[0].SetName(t[1])
if isinstance(t[0], ObjectClassDefn):
t[0].reg_types()
# 9.2
def p_ObjectClass (t):
'''ObjectClass : DefinedObjectClass
| ObjectClassDefn
| ParameterizedObjectClass '''
t[0] = t[1]
# 9.3
def p_ObjectClassDefn (t):
'''ObjectClassDefn : CLASS LBRACE FieldSpecs RBRACE
| CLASS LBRACE FieldSpecs RBRACE WithSyntaxSpec'''
t[0] = ObjectClassDefn(fields = t[3])
def p_FieldSpecs_1 (t):
'FieldSpecs : FieldSpec'
t[0] = [t[1]]
def p_FieldSpecs_2 (t):
'FieldSpecs : FieldSpecs COMMA FieldSpec'
t[0] = t[1] + [t[3]]
def p_WithSyntaxSpec (t):
'WithSyntaxSpec : WITH SYNTAX lbraceignore rbraceignore'
t[0] = None
# 9.4
def p_FieldSpec (t):
'''FieldSpec : TypeFieldSpec
| FixedTypeValueFieldSpec
| VariableTypeValueFieldSpec
| FixedTypeValueSetFieldSpec
| ObjectFieldSpec
| ObjectSetFieldSpec '''
t[0] = t[1]
# 9.5
def p_TypeFieldSpec (t):
'''TypeFieldSpec : ucasefieldreference
| ucasefieldreference TypeOptionalitySpec '''
t[0] = TypeFieldSpec()
t[0].SetName(t[1])
def p_TypeOptionalitySpec_1 (t):
'TypeOptionalitySpec ::= OPTIONAL'
pass
def p_TypeOptionalitySpec_2 (t):
'TypeOptionalitySpec ::= DEFAULT Type'
pass
# 9.6
def p_FixedTypeValueFieldSpec (t):
'''FixedTypeValueFieldSpec : lcasefieldreference Type
| lcasefieldreference Type UNIQUE
| lcasefieldreference Type ValueOptionalitySpec
| lcasefieldreference Type UNIQUE ValueOptionalitySpec '''
t[0] = FixedTypeValueFieldSpec(typ = t[2])
t[0].SetName(t[1])
def p_ValueOptionalitySpec_1 (t):
'ValueOptionalitySpec ::= OPTIONAL'
pass
def p_ValueOptionalitySpec_2 (t):
'ValueOptionalitySpec ::= DEFAULT Value'
pass
# 9.8
def p_VariableTypeValueFieldSpec (t):
'''VariableTypeValueFieldSpec : lcasefieldreference FieldName
| lcasefieldreference FieldName ValueOptionalitySpec '''
t[0] = VariableTypeValueFieldSpec()
t[0].SetName(t[1])
# 9.9
def p_FixedTypeValueSetFieldSpec (t):
'''FixedTypeValueSetFieldSpec : ucasefieldreference Type
| ucasefieldreference Type ValueSetOptionalitySpec '''
t[0] = FixedTypeValueSetFieldSpec()
t[0].SetName(t[1])
def p_ValueSetOptionalitySpec_1 (t):
'ValueSetOptionalitySpec ::= OPTIONAL'
pass
def p_ValueSetOptionalitySpec_2 (t):
'ValueSetOptionalitySpec ::= DEFAULT ValueSet'
pass
# 9.11
def p_ObjectFieldSpec (t):
'''ObjectFieldSpec : lcasefieldreference DefinedObjectClass
| lcasefieldreference DefinedObjectClass ObjectOptionalitySpec '''
t[0] = ObjectFieldSpec(cls=t[2])
t[0].SetName(t[1])
global obj_class
obj_class = None
def p_ObjectOptionalitySpec_1 (t):
'ObjectOptionalitySpec ::= OPTIONAL'
pass
def p_ObjectOptionalitySpec_2 (t):
'ObjectOptionalitySpec ::= DEFAULT Object'
pass
# 9.12
def p_ObjectSetFieldSpec (t):
'''ObjectSetFieldSpec : ucasefieldreference DefinedObjectClass
| ucasefieldreference DefinedObjectClass ObjectSetOptionalitySpec '''
t[0] = ObjectSetFieldSpec(cls=t[2])
t[0].SetName(t[1])
def p_ObjectSetOptionalitySpec_1 (t):
'ObjectSetOptionalitySpec ::= OPTIONAL'
pass
def p_ObjectSetOptionalitySpec_2 (t):
'ObjectSetOptionalitySpec ::= DEFAULT ObjectSet'
pass
# 9.13
def p_PrimitiveFieldName (t):
'''PrimitiveFieldName : ucasefieldreference
| lcasefieldreference '''
t[0] = t[1]
# 9.13
def p_FieldName_1 (t):
'FieldName : PrimitiveFieldName'
t[0] = t[1]
def p_FieldName_2 (t):
'FieldName : FieldName DOT PrimitiveFieldName'
t[0] = t[1] + '.' + t[3]
# 11 Information object definition and assignment
# 11.1
def p_ObjectAssignment (t):
'ObjectAssignment : objectreference DefinedObjectClass ASSIGNMENT Object'
t[0] = ObjectAssignment (ident = t[1], cls=t[2].val, val=t[4])
global obj_class
obj_class = None
# 11.3
def p_Object (t):
'''Object : DefinedObject
| ObjectDefn
| ParameterizedObject'''
t[0] = t[1]
# 11.4
def p_ObjectDefn (t):
'ObjectDefn : lbraceobject bodyobject rbraceobject'
t[0] = t[2]
# {...} block of object definition
def p_lbraceobject(t):
'lbraceobject : braceobjectbegin LBRACE'
t[0] = t[1]
def p_braceobjectbegin(t):
'braceobjectbegin : '
global lexer
global obj_class
if set_class_syntax(obj_class):
state = 'INITIAL'
else:
lexer.level = 1
state = 'braceignore'
lexer.push_state(state)
def p_rbraceobject(t):
'rbraceobject : braceobjectend RBRACE'
t[0] = t[2]
def p_braceobjectend(t):
'braceobjectend : '
global lexer
lexer.pop_state()
set_class_syntax(None)
def p_bodyobject_1 (t):
'bodyobject : '
t[0] = { }
def p_bodyobject_2 (t):
'bodyobject : cls_syntax_list'
t[0] = t[1]
def p_cls_syntax_list_1 (t):
'cls_syntax_list : cls_syntax_list cls_syntax'
t[0] = t[1]
t[0].update(t[2])
def p_cls_syntax_list_2 (t):
'cls_syntax_list : cls_syntax'
t[0] = t[1]
# X.681
def p_cls_syntax_1 (t):
'cls_syntax : Type IDENTIFIED BY Value'
t[0] = { get_class_fieled(' ') : t[1], get_class_fieled(' '.join((t[2], t[3]))) : t[4] }
def p_cls_syntax_2 (t):
'cls_syntax : HAS PROPERTY Value'
t[0] = { get_class_fieled(' '.join(t[1:-1])) : t[-1:][0] }
# X.880
def p_cls_syntax_3 (t):
'''cls_syntax : ERRORS ObjectSet
| LINKED ObjectSet
| RETURN RESULT BooleanValue
| SYNCHRONOUS BooleanValue
| INVOKE PRIORITY Value
| RESULT_PRIORITY Value
| PRIORITY Value
| ALWAYS RESPONDS BooleanValue
| IDEMPOTENT BooleanValue '''
t[0] = { get_class_fieled(' '.join(t[1:-1])) : t[-1:][0] }
def p_cls_syntax_4 (t):
'''cls_syntax : ARGUMENT Type
| RESULT Type
| PARAMETER Type '''
t[0] = { get_class_fieled(t[1]) : t[2] }
def p_cls_syntax_5 (t):
'cls_syntax : CODE Value'
fld = get_class_fieled(t[1]);
t[0] = { fld : t[2] }
if isinstance(t[2], ChoiceValue):
fldt = fld + '.' + t[2].choice
t[0][fldt] = t[2]
def p_cls_syntax_6 (t):
'''cls_syntax : ARGUMENT Type OPTIONAL BooleanValue
| RESULT Type OPTIONAL BooleanValue
| PARAMETER Type OPTIONAL BooleanValue '''
t[0] = { get_class_fieled(t[1]) : t[2], get_class_fieled(' '.join((t[1], t[3]))) : t[4] }
# 12 Information object set definition and assignment
# 12.1
def p_ObjectSetAssignment (t):
'ObjectSetAssignment : UCASE_IDENT CLASS_IDENT ASSIGNMENT ObjectSet'
t[0] = Node('ObjectSetAssignment', name=t[1], cls=t[2], val=t[4])
# 12.3
def p_ObjectSet (t):
'ObjectSet : lbraceignore rbraceignore'
t[0] = None
# 14 Notation for the object class field type ---------------------------------
# 14.1
def p_ObjectClassFieldType (t):
'ObjectClassFieldType : DefinedObjectClass DOT FieldName'
t[0] = get_type_from_class(t[1], t[3])
# 14.6
def p_ObjectClassFieldValue (t):
'''ObjectClassFieldValue : OpenTypeFieldVal'''
t[0] = t[1]
def p_OpenTypeFieldVal (t):
'''OpenTypeFieldVal : Type COLON Value
| NullType COLON NullValue'''
t[0] = t[3]
# 15 Information from objects -------------------------------------------------
# 15.1
def p_ValueFromObject (t):
'ValueFromObject : LCASE_IDENT DOT FieldName'
t[0] = t[1] + '.' + t[3]
# Annex C - The instance-of type ----------------------------------------------
# C.2
def p_InstanceOfType (t):
'InstanceOfType : INSTANCE OF DefinedObjectClass'
t[0] = InstanceOfType()
# --- tables ---
useful_object_class_types = {
# Annex A
'TYPE-IDENTIFIER.&id' : lambda : ObjectIdentifierType(),
'TYPE-IDENTIFIER.&Type' : lambda : OpenType(),
# Annex B
'ABSTRACT-SYNTAX.&id' : lambda : ObjectIdentifierType(),
'ABSTRACT-SYNTAX.&Type' : lambda : OpenType(),
'ABSTRACT-SYNTAX.&property' : lambda : BitStringType(),
}
object_class_types = { }
object_class_typerefs = { }
object_class_classrefs = { }
# dummy types
class _VariableTypeValueFieldSpec (AnyType):
pass
class _FixedTypeValueSetFieldSpec (AnyType):
pass
class_types_creator = {
'BooleanType' : lambda : BooleanType(),
'IntegerType' : lambda : IntegerType(),
'ObjectIdentifierType' : lambda : ObjectIdentifierType(),
'OpenType' : lambda : OpenType(),
# dummy types
'_VariableTypeValueFieldSpec' : lambda : _VariableTypeValueFieldSpec(),
'_FixedTypeValueSetFieldSpec' : lambda : _FixedTypeValueSetFieldSpec(),
}
class_names = { }
x681_syntaxes = {
'TYPE-IDENTIFIER' : {
' ' : '&Type',
'IDENTIFIED' : 'IDENTIFIED',
#'BY' : 'BY',
'IDENTIFIED BY' : '&id',
},
'ABSTRACT-SYNTAX' : {
' ' : '&Type',
'IDENTIFIED' : 'IDENTIFIED',
#'BY' : 'BY',
'IDENTIFIED BY' : '&id',
'HAS' : 'HAS',
'PROPERTY' : 'PROPERTY',
'HAS PROPERTY' : '&property',
},
}
class_syntaxes_enabled = {
'TYPE-IDENTIFIER' : True,
'ABSTRACT-SYNTAX' : True,
}
class_syntaxes = {
'TYPE-IDENTIFIER' : x681_syntaxes['TYPE-IDENTIFIER'],
'ABSTRACT-SYNTAX' : x681_syntaxes['ABSTRACT-SYNTAX'],
}
class_current_syntax = None
def get_syntax_tokens(syntaxes):
tokens = { }
for s in (syntaxes):
for k in (list(syntaxes[s].keys())):
if k.find(' ') < 0:
tokens[k] = k
tokens[k] = tokens[k].replace('-', '_')
return list(tokens.values())
tokens = tokens + get_syntax_tokens(x681_syntaxes)
def set_class_syntax(syntax):
global class_syntaxes_enabled
global class_current_syntax
#print "set_class_syntax", syntax, class_current_syntax
if class_syntaxes_enabled.get(syntax, False):
class_current_syntax = syntax
return True
else:
class_current_syntax = None
return False
def is_class_syntax(name):
global class_syntaxes
global class_current_syntax
#print "is_class_syntax", name, class_current_syntax
if not class_current_syntax:
return False
return name in class_syntaxes[class_current_syntax]
def get_class_fieled(name):
if not class_current_syntax:
return None
return class_syntaxes[class_current_syntax][name]
def is_class_ident(name):
return name in class_names
def add_class_ident(name):
#print "add_class_ident", name
class_names[name] = name
def get_type_from_class(cls, fld):
flds = fld.split('.')
if (isinstance(cls, Class_Ref)):
key = cls.val + '.' + flds[0]
else:
key = cls + '.' + flds[0]
if key in object_class_classrefs:
return get_type_from_class(object_class_classrefs[key], '.'.join(flds[1:]))
if key in object_class_typerefs:
return Type_Ref(val=object_class_typerefs[key])
creator = lambda : AnyType()
creator = useful_object_class_types.get(key, creator)
creator = object_class_types.get(key, creator)
return creator()
def set_type_to_class(cls, fld, pars):
#print "set_type_to_class", cls, fld, pars
key = cls + '.' + fld
typename = 'OpenType'
if (len(pars) > 0):
typename = pars[0]
else:
pars.append(typename)
typeref = None
if (len(pars) > 1):
if (isinstance(pars[1], Class_Ref)):
pars[1] = pars[1].val
typeref = pars[1]
msg = None
if key in object_class_types:
msg = object_class_types[key]().type
if key in object_class_typerefs:
msg = "TypeReference " + object_class_typerefs[key]
if key in object_class_classrefs:
msg = "ClassReference " + object_class_classrefs[key]
if msg == ' '.join(pars):
msg = None
if msg:
msg0 = "Can not define CLASS field %s as '%s'\n" % (key, ' '.join(pars))
msg1 = "Already defined as '%s'" % (msg)
raise CompError(msg0 + msg1)
if (typename == 'ClassReference'):
if not typeref: return False
object_class_classrefs[key] = typeref
return True
if (typename == 'TypeReference'):
if not typeref: return False
object_class_typerefs[key] = typeref
return True
creator = class_types_creator.get(typename)
if creator:
object_class_types[key] = creator
return True
else:
return False
def import_class_from_module(mod, cls):
add_class_ident(cls)
mcls = "$%s$%s" % (mod, cls)
for k in list(object_class_classrefs.keys()):
kk = k.split('.', 1)
if kk[0] == mcls:
object_class_classrefs[cls + '.' + kk[0]] = object_class_classrefs[k]
for k in list(object_class_typerefs.keys()):
kk = k.split('.', 1)
if kk[0] == mcls:
object_class_typerefs[cls + '.' + kk[0]] = object_class_typerefs[k]
for k in list(object_class_types.keys()):
kk = k.split('.', 1)
if kk[0] == mcls:
object_class_types[cls + '.' + kk[0]] = object_class_types[k]
#--- ITU-T Recommendation X.682 -----------------------------------------------
# 8 General constraint specification ------------------------------------------
# 8.1
def p_GeneralConstraint (t):
'''GeneralConstraint : UserDefinedConstraint
| TableConstraint
| ContentsConstraint'''
t[0] = t[1]
# 9 User-defined constraints --------------------------------------------------
# 9.1
def p_UserDefinedConstraint (t):
'UserDefinedConstraint : CONSTRAINED BY LBRACE UserDefinedConstraintParameterList RBRACE'
t[0] = Constraint(type = 'UserDefined', subtype = t[4])
def p_UserDefinedConstraintParameterList_1 (t):
'UserDefinedConstraintParameterList : '
t[0] = []
def p_UserDefinedConstraintParameterList_2 (t):
'UserDefinedConstraintParameterList : UserDefinedConstraintParameter'
t[0] = [t[1]]
def p_UserDefinedConstraintParameterList_3 (t):
'UserDefinedConstraintParameterList : UserDefinedConstraintParameterList COMMA UserDefinedConstraintParameter'
t[0] = t[1] + [t[3]]
# 9.3
def p_UserDefinedConstraintParameter (t):
'UserDefinedConstraintParameter : Type'
t[0] = t[1]
# 10 Table constraints, including component relation constraints --------------
# 10.3
def p_TableConstraint (t):
'''TableConstraint : SimpleTableConstraint
| ComponentRelationConstraint'''
t[0] = Constraint(type = 'Table', subtype = t[1])
def p_SimpleTableConstraint (t):
'SimpleTableConstraint : LBRACE UCASE_IDENT RBRACE'
t[0] = t[2]
# 10.7
def p_ComponentRelationConstraint (t):
'ComponentRelationConstraint : LBRACE UCASE_IDENT RBRACE LBRACE AtNotations RBRACE'
t[0] = t[2] + str(t[5])
def p_AtNotations_1 (t):
'AtNotations : AtNotation'
t[0] = [t[1]]
def p_AtNotations_2 (t):
'AtNotations : AtNotations COMMA AtNotation'
t[0] = t[1] + [t[3]]
def p_AtNotation_1 (t):
'AtNotation : AT ComponentIdList'
t[0] = '@' + t[2]
def p_AtNotation_2 (t):
'AtNotation : AT DOT Level ComponentIdList'
t[0] = '@.' + t[3] + t[4]
def p_Level_1 (t):
'Level : DOT Level'
t[0] = '.' + t[2]
def p_Level_2 (t):
'Level : '
t[0] = ''
def p_ComponentIdList_1 (t):
'ComponentIdList : LCASE_IDENT'
t[0] = t[1]
def p_ComponentIdList_2 (t):
'ComponentIdList : ComponentIdList DOT LCASE_IDENT'
t[0] = t[1] + '.' + t[3]
# 11 Contents constraints -----------------------------------------------------
# 11.1
def p_ContentsConstraint (t):
'ContentsConstraint : CONTAINING type_ref'
t[0] = Constraint(type = 'Contents', subtype = t[2])
#--- ITU-T Recommendation X.683 -----------------------------------------------
# 8 Parameterized assignments -------------------------------------------------
# 8.1
def p_ParameterizedAssignment (t):
'''ParameterizedAssignment : ParameterizedTypeAssignment
| ParameterizedObjectClassAssignment
| ParameterizedObjectAssignment
| ParameterizedObjectSetAssignment'''
t[0] = t[1]
# 8.2
def p_ParameterizedTypeAssignment (t):
'ParameterizedTypeAssignment : UCASE_IDENT ParameterList ASSIGNMENT Type'
t[0] = t[4]
t[0].SetName(t[1]) # t[0].SetName(t[1] + 'xxx')
def p_ParameterizedObjectClassAssignment (t):
'''ParameterizedObjectClassAssignment : CLASS_IDENT ParameterList ASSIGNMENT ObjectClass
| UCASE_IDENT ParameterList ASSIGNMENT ObjectClass'''
t[0] = t[4]
t[0].SetName(t[1])
if isinstance(t[0], ObjectClassDefn):
t[0].reg_types()
def p_ParameterizedObjectAssignment (t):
'ParameterizedObjectAssignment : objectreference ParameterList DefinedObjectClass ASSIGNMENT Object'
t[0] = ObjectAssignment (ident = t[1], cls=t[3].val, val=t[5])
global obj_class
obj_class = None
def p_ParameterizedObjectSetAssignment (t):
'ParameterizedObjectSetAssignment : UCASE_IDENT ParameterList DefinedObjectClass ASSIGNMENT ObjectSet'
t[0] = Node('ObjectSetAssignment', name=t[1], cls=t[3].val, val=t[5])
# 8.3
def p_ParameterList (t):
'ParameterList : lbraceignore rbraceignore'
#def p_ParameterList (t):
# 'ParameterList : LBRACE Parameters RBRACE'
# t[0] = t[2]
#def p_Parameters_1 (t):
# 'Parameters : Parameter'
# t[0] = [t[1]]
#def p_Parameters_2 (t):
# 'Parameters : Parameters COMMA Parameter'
# t[0] = t[1] + [t[3]]
#def p_Parameter_1 (t):
# 'Parameter : Type COLON Reference'
# t[0] = [t[1], t[3]]
#def p_Parameter_2 (t):
# 'Parameter : Reference'
# t[0] = t[1]
# 9 Referencing parameterized definitions -------------------------------------
# 9.1
def p_ParameterizedReference (t):
'ParameterizedReference : Reference LBRACE RBRACE'
t[0] = t[1]
#t[0].val += 'xxx'
# 9.2
def p_ParameterizedType (t):
'ParameterizedType : type_ref ActualParameterList'
t[0] = t[1]
#t[0].val += 'xxx'
def p_ParameterizedObjectClass (t):
'ParameterizedObjectClass : DefinedObjectClass ActualParameterList'
t[0] = t[1]
#t[0].val += 'xxx'
def p_ParameterizedObject (t):
'ParameterizedObject : DefinedObject ActualParameterList'
t[0] = t[1]
#t[0].val += 'xxx'
# 9.5
def p_ActualParameterList (t):
'ActualParameterList : lbraceignore rbraceignore'
#def p_ActualParameterList (t):
# 'ActualParameterList : LBRACE ActualParameters RBRACE'
# t[0] = t[2]
#def p_ActualParameters_1 (t):
# 'ActualParameters : ActualParameter'
# t[0] = [t[1]]
#def p_ActualParameters_2 (t):
# 'ActualParameters : ActualParameters COMMA ActualParameter'
# t[0] = t[1] + [t[3]]
#def p_ActualParameter (t):
# '''ActualParameter : Type
# | Value'''
# t[0] = t[1]
#--- ITU-T Recommendation X.880 -----------------------------------------------
x880_classes = {
'OPERATION' : {
'&ArgumentType' : [],
'&argumentTypeOptional' : [ 'BooleanType' ],
'&returnResult' : [ 'BooleanType' ],
'&ResultType' : [],
'&resultTypeOptional' : [ 'BooleanType' ],
'&Errors' : [ 'ClassReference', 'ERROR' ],
'&Linked' : [ 'ClassReference', 'OPERATION' ],
'&synchronous' : [ 'BooleanType' ],
'&idempotent' : [ 'BooleanType' ],
'&alwaysReturns' : [ 'BooleanType' ],
'&InvokePriority' : [ '_FixedTypeValueSetFieldSpec' ],
'&ResultPriority' : [ '_FixedTypeValueSetFieldSpec' ],
'&operationCode' : [ 'TypeReference', 'Code' ],
},
'ERROR' : {
'&ParameterType' : [],
'¶meterTypeOptional' : [ 'BooleanType' ],
'&ErrorPriority' : [ '_FixedTypeValueSetFieldSpec' ],
'&errorCode' : [ 'TypeReference', 'Code' ],
},
'OPERATION-PACKAGE' : {
'&Both' : [ 'ClassReference', 'OPERATION' ],
'&Consumer' : [ 'ClassReference', 'OPERATION' ],
'&Supplier' : [ 'ClassReference', 'OPERATION' ],
'&id' : [ 'ObjectIdentifierType' ],
},
'CONNECTION-PACKAGE' : {
'&bind' : [ 'ClassReference', 'OPERATION' ],
'&unbind' : [ 'ClassReference', 'OPERATION' ],
'&responderCanUnbind' : [ 'BooleanType' ],
'&unbindCanFail' : [ 'BooleanType' ],
'&id' : [ 'ObjectIdentifierType' ],
},
'CONTRACT' : {
'&connection' : [ 'ClassReference', 'CONNECTION-PACKAGE' ],
'&OperationsOf' : [ 'ClassReference', 'OPERATION-PACKAGE' ],
'&InitiatorConsumerOf' : [ 'ClassReference', 'OPERATION-PACKAGE' ],
'&InitiatorSupplierOf' : [ 'ClassReference', 'OPERATION-PACKAGE' ],
'&id' : [ 'ObjectIdentifierType' ],
},
'ROS-OBJECT-CLASS' : {
'&Is' : [ 'ClassReference', 'ROS-OBJECT-CLASS' ],
'&Initiates' : [ 'ClassReference', 'CONTRACT' ],
'&Responds' : [ 'ClassReference', 'CONTRACT' ],
'&InitiatesAndResponds' : [ 'ClassReference', 'CONTRACT' ],
'&id' : [ 'ObjectIdentifierType' ],
},
}
x880_syntaxes = {
'OPERATION' : {
'ARGUMENT' : '&ArgumentType',
'ARGUMENT OPTIONAL' : '&argumentTypeOptional',
'RESULT' : '&ResultType',
'RESULT OPTIONAL' : '&resultTypeOptional',
'RETURN' : 'RETURN',
'RETURN RESULT' : '&returnResult',
'ERRORS' : '&Errors',
'LINKED' : '&Linked',
'SYNCHRONOUS' : '&synchronous',
'IDEMPOTENT' : '&idempotent',
'ALWAYS' : 'ALWAYS',
'RESPONDS' : 'RESPONDS',
'ALWAYS RESPONDS' : '&alwaysReturns',
'INVOKE' : 'INVOKE',
'PRIORITY' : 'PRIORITY',
'INVOKE PRIORITY' : '&InvokePriority',
'RESULT-PRIORITY': '&ResultPriority',
'CODE' : '&operationCode',
},
'ERROR' : {
'PARAMETER' : '&ParameterType',
'PARAMETER OPTIONAL' : '¶meterTypeOptional',
'PRIORITY' : '&ErrorPriority',
'CODE' : '&errorCode',
},
# 'OPERATION-PACKAGE' : {
# },
# 'CONNECTION-PACKAGE' : {
# },
# 'CONTRACT' : {
# },
# 'ROS-OBJECT-CLASS' : {
# },
}
def x880_module_begin():
#print "x880_module_begin()"
for name in list(x880_classes.keys()):
add_class_ident(name)
def x880_import(name):
if name in x880_syntaxes:
class_syntaxes_enabled[name] = True
class_syntaxes[name] = x880_syntaxes[name]
if name in x880_classes:
add_class_ident(name)
for f in (list(x880_classes[name].keys())):
set_type_to_class(name, f, x880_classes[name][f])
tokens = tokens + get_syntax_tokens(x880_syntaxes)
# {...} OID value
#def p_lbrace_oid(t):
# 'lbrace_oid : brace_oid_begin LBRACE'
# t[0] = t[1]
#def p_brace_oid_begin(t):
# 'brace_oid_begin : '
# global in_oid
# in_oid = True
#def p_rbrace_oid(t):
# 'rbrace_oid : brace_oid_end RBRACE'
# t[0] = t[2]
#def p_brace_oid_end(t):
# 'brace_oid_end : '
# global in_oid
# in_oid = False
# {...} block to be ignored
def p_lbraceignore(t):
'lbraceignore : braceignorebegin LBRACE'
t[0] = t[1]
def p_braceignorebegin(t):
'braceignorebegin : '
global lexer
lexer.level = 1
lexer.push_state('braceignore')
def p_rbraceignore(t):
'rbraceignore : braceignoreend RBRACE'
t[0] = t[2]
def p_braceignoreend(t):
'braceignoreend : '
global lexer
lexer.pop_state()
def p_error(t):
global input_file
raise ParseError(t, input_file)
def p_pyquote (t):
'''pyquote : PYQUOTE'''
t[0] = PyQuote (val = t[1])
def testlex (s):
lexer.input (s)
while True:
token = lexer.token ()
if not token:
break
print(token)
def do_module (ast, defined_dict):
assert (ast.type == 'Module')
ctx = Ctx (defined_dict)
print(ast.to_python (ctx))
print(ctx.output_assignments ())
print(ctx.output_pyquotes ())
def eth_do_module (ast, ectx):
assert (ast.type == 'Module')
if ectx.dbg('s'): print(ast.str_depth(0))
ast.to_eth(ectx)
def testyacc(s, fn, defined_dict):
ast = yacc.parse(s, debug=0)
time_str = time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.gmtime())
print("""#!/usr/bin/env python
# Auto-generated from %s at %s
from PyZ3950 import asn1""" % (fn, time_str))
for module in ast:
eth_do_module (module, defined_dict)
# Wireshark compiler
def eth_usage():
print("""
asn2wrs [-h|?] [-d dbg] [-b] [-p proto] [-c cnf_file] [-e] input_file(s) ...
-h|? : Usage
-b : BER (default is PER)
-u : Unaligned (default is aligned)
-p proto : Protocol name (implies -S). Default is module-name
from input_file (renamed by #.MODULE if present)
-o name : Output files name core (default is <proto>)
-O dir : Output directory for dissector
-c cnf_file : Conformance file
-I path : Path for conformance file includes
-e : Create conformance file for exported types
-E : Just create conformance file for exported types
-S : Single output for multiple modules
-s template : Single file output (template is input file
without .c/.h extension)
-k : Keep intermediate files though single file output is used
-L : Suppress #line directive from .cnf file
-D dir : Directory for input_file(s) (default: '.')
-C : Add check for SIZE constraints
-r prefix : Remove the prefix from type names
input_file(s) : Input ASN.1 file(s)
-d dbg : Debug output, dbg = [l][y][p][s][a][t][c][m][o]
l - lex
y - yacc
p - parsing
s - internal ASN.1 structure
a - list of assignments
t - tables
c - conformance values
m - list of compiled modules with dependency
o - list of output files
""")
def eth_main():
global input_file
global g_conform
global lexer
print("ASN.1 to Wireshark dissector compiler");
try:
opts, args = getopt.getopt(sys.argv[1:], "h?d:D:buXp:FTo:O:c:I:eESs:kLCr:");
except getopt.GetoptError:
eth_usage(); sys.exit(2)
if len(args) < 1:
eth_usage(); sys.exit(2)
conform = EthCnf()
conf_to_read = None
output = EthOut()
ectx = EthCtx(conform, output)
ectx.encoding = 'per'
ectx.proto_opt = None
ectx.fld_opt = {}
ectx.tag_opt = False
ectx.outnm_opt = None
ectx.aligned = True
ectx.dbgopt = ''
ectx.new = True
ectx.expcnf = False
ectx.justexpcnf = False
ectx.merge_modules = False
ectx.group_by_prot = False
ectx.conform.last_group = 0
ectx.conform.suppress_line = False;
ectx.output.outnm = None
ectx.output.single_file = None
ectx.constraints_check = False;
for o, a in opts:
if o in ("-h", "-?"):
eth_usage(); sys.exit(2)
if o in ("-c",):
conf_to_read = relpath(a)
if o in ("-I",):
ectx.conform.include_path.append(relpath(a))
if o in ("-E",):
ectx.expcnf = True
ectx.justexpcnf = True
if o in ("-D",):
ectx.srcdir = relpath(a)
if o in ("-C",):
ectx.constraints_check = True
if o in ("-X",):
warnings.warn("Command line option -X is obsolete and can be removed")
if o in ("-T",):
warnings.warn("Command line option -T is obsolete and can be removed")
if conf_to_read:
ectx.conform.read(conf_to_read)
for o, a in opts:
if o in ("-h", "-?", "-c", "-I", "-E", "-D", "-C", "-X", "-T"):
pass # already processed
else:
par = []
if a: par.append(a)
ectx.conform.set_opt(o, par, "commandline", 0)
(ld, yd, pd) = (0, 0, 0);
if ectx.dbg('l'): ld = 1
if ectx.dbg('y'): yd = 1
if ectx.dbg('p'): pd = 2
lexer = lex.lex(debug=ld)
parser = yacc.yacc(method='LALR', debug=yd, outputdir='.')
parser.defaulted_states = {}
g_conform = ectx.conform
ast = []
for fn in args:
input_file = fn
lexer.lineno = 1
if (ectx.srcdir): fn = ectx.srcdir + '/' + fn
# Read ASN.1 definition, trying one of the common encodings.
data = open(fn, "rb").read()
for encoding in ('utf-8', 'windows-1252'):
try:
data = data.decode(encoding)
break
except:
warnings.warn_explicit("Decoding %s as %s failed, trying next." % (fn, encoding), UserWarning, '', 0)
# Py2 compat, name.translate in eth_output_hf_arr fails with unicode
if not isinstance(data, str):
data = data.encode('utf-8')
ast.extend(yacc.parse(data, lexer=lexer, debug=pd))
ectx.eth_clean()
if (ectx.merge_modules): # common output for all module
ectx.eth_clean()
for module in ast:
eth_do_module(module, ectx)
ectx.eth_prepare()
ectx.eth_do_output()
elif (ectx.groups()): # group by protocols/group
groups = []
pr2gr = {}
if (ectx.group_by_prot): # group by protocols
for module in ast:
prot = module.get_proto(ectx)
if prot not in pr2gr:
pr2gr[prot] = len(groups)
groups.append([])
groups[pr2gr[prot]].append(module)
else: # group by groups
pass
for gm in (groups):
ectx.eth_clean()
for module in gm:
eth_do_module(module, ectx)
ectx.eth_prepare()
ectx.eth_do_output()
else: # output for each module
for module in ast:
ectx.eth_clean()
eth_do_module(module, ectx)
ectx.eth_prepare()
ectx.eth_do_output()
if ectx.dbg('m'):
ectx.dbg_modules()
if ectx.dbg('c'):
ectx.conform.dbg_print()
if not ectx.justexpcnf:
ectx.conform.unused_report()
if ectx.dbg('o'):
ectx.output.dbg_print()
ectx.output.make_single_file()
# Python compiler
def main():
testfn = testyacc
if len (sys.argv) == 1:
while True:
s = input ('Query: ')
if len (s) == 0:
break
testfn (s, 'console', {})
else:
defined_dict = {}
for fn in sys.argv [1:]:
f = open (fn, "r")
testfn (f.read (), fn, defined_dict)
f.close ()
lexer.lineno = 1
#--- BODY ---------------------------------------------------------------------
if __name__ == '__main__':
if (os.path.splitext(os.path.basename(sys.argv[0]))[0].lower() in ('asn2wrs', 'asn2eth')):
eth_main()
else:
main()
#------------------------------------------------------------------------------
#
# Editor modelines - http://www.wireshark.org/tools/modelines.html
#
# c-basic-offset: 4; tab-width: 8; indent-tabs-mode: nil
# vi: set shiftwidth=4 tabstop=8 expandtab:
# :indentSize=4:tabSize=8:noTabs=true:
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