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Diffstat (limited to 'tools/asn2wrs.py')
| -rwxr-xr-x | tools/asn2wrs.py | 8242 |
1 files changed, 8242 insertions, 0 deletions
diff --git a/tools/asn2wrs.py b/tools/asn2wrs.py new file mode 100755 index 00000000..6669be82 --- /dev/null +++ b/tools/asn2wrs.py @@ -0,0 +1,8242 @@ +#!/usr/bin/env python3 + +# +# asn2wrs.py +# ASN.1 to Wireshark dissector compiler +# Copyright 2004 Tomas Kukosa +# +# SPDX-License-Identifier: MIT +# + +"""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 +# https://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) +# https://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 + +try: + from ply import lex + from ply import yacc +except ImportError: + # Fallback: use lex.py and yacc from the tools directory within the + # Wireshark source tree if python-ply is not installed. + 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', + 'SUCCESSORS' : 'SUCCESSORS', + '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] is None: + static_tokens [k] = k + +StringTypes = ['Numeric', 'Printable', 'IA5', 'BMP', 'Universal', 'UTF8', + 'Teletex', 'T61', 'Videotex', 'Graphic', 'ISO646', 'Visible', + 'General'] + +# Effective permitted-alphabet constraints are PER-visible only +# for the known-multiplier character string types (X.691 27.1) +# +# XXX: This should include BMPString (UCS2) and UniversalString (UCS4), +# but asn2wrs only suports the RestrictedCharacterStringValue +# notation of "cstring", but not that of "CharacterStringList", +# "Quadruple", or "Tuple" (See X.680 41.8), and packet-per.c does +# not support members of the permitted-alphabet being outside the +# ASCII range. We don't currently have any ASN.1 modules that need it, +# anyway. +KnownMultiplierStringTypes = ('NumericString', 'PrintableString', 'IA5String', + 'ISO646String', 'VisibleString') + +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 Oer(self): return self.encoding == 'oer' + 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']) + if attr['STRINGS'].startswith('VALS64(') and '|BASE_VAL64_STRING' not in attr['DISPLAY']: + attr['DISPLAY'] += '|BASE_VAL64_STRING' + #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), 'module=', self.Module()) + 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, mod=None): + #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: + #print('DuplicateError: import=', self.type[ident]['import'], 'module=', self.Module()) + 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) + if mod : + mident = "$%s$%s" % (mod, ident) + else: + mident = None + 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) + if mident and self.conform.check_item('NO_EMIT', mident) : + self.type[ident]['no_emit'] = self.conform.use_item('NO_EMIT', mident) + else: + 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: + if self.eth_type[nm]['val'].type == 'IntegerType' \ + and self.eth_type[nm]['val'].HasConstraint() \ + and self.eth_type[nm]['val'].constr.Needs64b(self): + self.eth_type[nm]['attr']['STRINGS'] = 'VALS64(%s)' % (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): + old_val = 0 + 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]}) + old_val = val + 1 + 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() and not self.Oer(): + 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 ' + if self.eth_type[tname]['val'].HasConstraint() and self.eth_type[tname]['val'].constr.Needs64b(self) \ + and self.eth_type[tname]['val'].type == 'IntegerType': + out += "const val64_string %s[] = {\n" % (self.eth_vals_nm(tname)) + else: + 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 int * const " + out += "%(TABLE)s[] = {\n" + for (val, id) in bits: + out += ' &hf_%s_%s_%s,\n' % (self.eproto, tname, asn2c(id)) + out += " 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(bool 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() or self.Oer()): + 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 + + def output_proto_root(self): + out = '' + if self.conform.proto_root_name: + out += ' proto_item *prot_ti = proto_tree_add_item(tree, ' + self.conform.proto_root_name + ', tvb, 0, -1, ENC_NA);\n' + out += ' proto_item_set_hidden(prot_ti);\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(bool 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() or self.Oer()): + 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.check_item('PDU', tname): + out += self.output_proto_root() + + cycle_size = 0 + if self.eth_dep_cycle: + for cur_cycle in self.eth_dep_cycle: + t = self.type[cur_cycle[0]]['ethname'] + if t == tname: + cycle_size = len(cur_cycle) + break + + if cycle_size > 0: + out += f'''\ + const int proto_id = GPOINTER_TO_INT(wmem_list_frame_data(wmem_list_tail(actx->pinfo->layers))); + const unsigned cycle_size = {cycle_size}; + unsigned recursion_depth = p_get_proto_depth(actx->pinfo, proto_id); + DISSECTOR_ASSERT(recursion_depth <= MAX_RECURSION_DEPTH); + p_set_proto_depth(actx->pinfo, proto_id, recursion_depth + cycle_size); +''' + + 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 + + add_recursion_check = False + if self.eth_dep_cycle: + for cur_cycle in self.eth_dep_cycle: + t = self.type[cur_cycle[0]]['ethname'] + if t == tname: + add_recursion_check = True + break + + if add_recursion_check: + out += '''\ + p_set_proto_depth(actx->pinfo, proto_id, recursion_depth - cycle_size); +''' + + 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 Exception: + 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: + flt_str = nb['ethname'] + # cut out hf_ + flt_str = flt_str[3:] + flt_str = flt_str.replace('_' , '.') + #print("filter string=%s" % (flt_str)) + fx.write(' { &%s,\n' % (nb['ethname'])) + fx.write(' { "%s", "%s",\n' % (nb['name'], flt_str)) + 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 ") + if self.eth_type[t]['val'].HasConstraint() and self.eth_type[t]['val'].constr.Needs64b(self) \ + and self.eth_type[t]['val'].type == 'IntegerType': + fx.write("const val64_string %s[];\n" % (self.eth_vals_nm(t))) + else: + 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 += self.output_proto_root() + + 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']),) + elif (self.Oer()): + out += " asn1_ctx_t asn1_ctx;\n" + out += self.eth_fn_call('asn1_ctx_init', par=(('&asn1_ctx', 'ASN1_ENC_OER', 'TRUE', 'pinfo'),)) + 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') + + add_depth_define = False + 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 + add_depth_define = True + 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') + if add_depth_define: + fx.write('#define MAX_RECURSION_DEPTH 100 // Arbitrarily chosen.\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: + if self.eth_type[t]['val'].HasConstraint() and self.eth_type[t]['val'].constr.Needs64b(self) \ + and self.eth_type[t]['val'].type == 'IntegerType': + fx.write("extern const val64_string %s[];\n" % (self.eth_vals_nm(t))) + else: + 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', 'OER')): + 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('{} {}'.format(v, a)) + print("\n# Value assignments") + for a in self.vassign_ord: + print(' {}'.format(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 = [] + self.proto_root_name = None + # 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) + elif (par[0] in ('O', 'OER')): rtype = 'OER'; (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', 'OER')): + 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_VALS + 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_VALS + 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 ("OER",): + par = self.check_par(par, 0, 0, fn, lineno) + self.ectx.encoding = 'oer' + 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 ("PROTO_ROOT_NAME"): + par = self.check_par(par, 1, 1, fn, lineno) + if not par: return + self.proto_root_name = par[0] + 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, suppress_line): + 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, suppress_line) + 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, suppress_line) + 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, suppress_line): + 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)) + if (not suppress_line): + 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): + if (not suppress_line): + 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()) + if (not suppress_line): + 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, mod = ectx.Module()) + 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, tname): + print("#Unhandled eth_type_default_body('%s') in %s" % (tname, 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) + ext = ext or (hasattr(self, 'ext') and self.ext) + 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]), hasattr(self, 'ext') and self.ext) + 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() or ((str(maxv)[0] == "-") and str(maxv)[1:].isdigit())) \ + and ((abs(int(maxv) - int(minv)) >= 2**32) or (int(minv) < -2**31) or (int(maxv) >= 2**32))) \ + or (maxv == 'MAX') or (minv == 'MIN'): + 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() or ectx.Oer()) 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() or ectx.Oer()): + 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() or ectx.Oer()): + 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 tagged_type %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() or ectx.Oer()): + 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() or ectx.Oer()): # 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 is not 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() or ectx.Oer()) 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() or ectx.Oer()) 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 SequenceOfType %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 SetOfType %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 is 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() or ectx.Oer()): + 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 SequenceType %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 ExtensionAdditionGroup %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 SetType %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 ectx.Oer()) 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 ectx.Oer()) 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() or ectx.Oer()): + 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() or ectx.Oer()): + 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 ChoiceType %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 is not 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() and not ectx.Oer()): return '' + map_table = self.get_vals_etc(ectx)[3] + if map_table is None: return '' + table = "static uint32_t %(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() or ectx.Oer()): + 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 EnumeratedType %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 EmbeddedPDVType %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 ExternalType %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() or ectx.Oer()): + 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 OpenType %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',),)) + 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() or ectx.Oer()): + 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',),)) + elif (ectx.Oer()): + 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() or ectx.Oer()): + 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() and self.eth_tsname() in KnownMultiplierStringTypes): + # XXX: If there is a permitted alphabet but it is extensible, + # then the permitted-alphabet is not PER-visible and should be + # ignored. (X.691 9.3.10, 9.3.18) We don't handle extensible + # permitted-alphabets. + 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' or 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'), + ('%(VAL_PTR)s',),)) + elif (self.eth_tsname() in KnownMultiplierStringTypes): + 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'), + ('%(VAL_PTR)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',),)) + elif (ectx.Oer()): + 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_ftype(self, ectx): + if (ectx.Ber()): + return ('FT_ABSOLUTE_TIME', 'ABSOLUTE_TIME_LOCAL') + else: + return ('FT_STRING', 'BASE_NONE') + + 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', 'NULL', 'NULL'),)) + 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',),)) + elif (ectx.Oer()): + 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) + def __lt__(self, other): + return int(self.val) < int(other.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 relative_oid %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: + if (ectx.Oer() and pars['MAX_VAL'] == 'NO_BOUND'): + pars['FN_VARIANT'] = '_64b_no_ub' + 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() or ectx.Oer()): + if (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 = 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'),)) + 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 sortNamedBits(self): + return self.named_list.val + + def eth_named_bits(self): + bits = [] + if (self.named_list): + sorted_list = self.named_list + sorted_list.sort() + expected_bit_no = 0; + for e in (sorted_list): + # Fill the table with "spare_bit" for "un named bits" + if (int(e.val) != 0) and (expected_bit_no != int(e.val)): + while ( expected_bit_no < int(e.val)): + bits.append((expected_bit_no, ("spare_bit%u" % (expected_bit_no)))) + expected_bit_no = expected_bit_no + 1 + #print ("Adding named bits to list %s bit no %d" % (e.ident, int (e.val))) + bits.append((int(e.val), e.ident)) + expected_bit_no = int(e.val) + 1 + 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): + table = ectx.eth_bits(tname, bits) + return table + + def eth_type_default_body(self, ectx, tname): + bits = self.eth_named_bits() + 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', '%s' % len(bits),'%(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', '%s' % len(bits), '%(HF_INDEX)s', '%(ETT_INDEX)s',), + ('%(VAL_PTR)s',),)) + elif (ectx.Per() or ectx.Oer()): + 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','%(TABLE)s', '%s' % len(bits), '%(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 + | SymbolList FROM GlobalModuleReference WITH SUCCESSORS''' + 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 + """) + + +## Used to preparse C style comments +## https://github.com/eerimoq/asn1tools/blob/master/asn1tools/parser.py#L231 +## +def ignore_comments(string): + """Ignore comments in given string by replacing them with spaces. This + reduces the parsing time by roughly a factor of two. + + """ + + comments = [ + (mo.start(), mo.group(0)) + for mo in re.finditer(r'(/\*|\*/|\n)', string) + ] + + comments.sort() + + multi_line_comment_depth = 0 + start_offset = 0 + non_comment_offset = 0 + chunks = [] + + for offset, kind in comments: + if multi_line_comment_depth > 0: + if kind == '/*': + multi_line_comment_depth += 1 + elif kind == '*/': + multi_line_comment_depth -= 1 + + if multi_line_comment_depth == 0: + offset += 2 + chunks.append(' ' * (offset - start_offset)) + non_comment_offset = offset + elif kind == '\n': + chunks.append('\n') + non_comment_offset = offset + elif kind == '/*': + multi_line_comment_depth = 1 + start_offset = offset + chunks.append(string[non_comment_offset:start_offset]) + + chunks.append(string[non_comment_offset:]) + + return ''.join(chunks) + +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 ("-L",): + ectx.suppress_line = 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 Exception: + 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') + data = ignore_comments(data) + 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(ectx.suppress_line) + + +# Python compiler +def main(): + if sys.version_info[0] < 3: + print("This requires Python 3") + sys.exit(2) + + testfn = testyacc + if len (sys.argv) == 1: + while True: + s = eval(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 - https://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: |