src/tools/vppapigen/vppapigen.py

   1 #!/usr/bin/env python3
   2
   3 import sys
   4 import argparse
   5 import keyword
   6 import logging
   7 import binascii
   8 import os
   9 from subprocess import Popen, PIPE
  10 import ply.lex as lex
  11 import ply.yacc as yacc
  12
  13 assert sys.version_info >= (3, 5), \
  14     "Not supported Python version: {}".format(sys.version)
  15 log = logging.getLogger('vppapigen')
  16
  17 # Ensure we don't leave temporary files around
  18 sys.dont_write_bytecode = True
  19
  20 #
  21 # VPP API language
  22 #
  23
  24 # Global dictionary of new types (including enums)
  25 global_types = {}
  26
  27 seen_imports = {}
  28
  29
  30 def global_type_add(name, obj):
  31     '''Add new type to the dictionary of types '''
  32     type_name = 'vl_api_' + name + '_t'
  33     if type_name in global_types:
  34         raise KeyError("Attempted redefinition of {!r} with {!r}.".format(
  35             name, obj))
  36     global_types[type_name] = obj
  37
  38
  39 # All your trace are belong to us!
  40 def exception_handler(exception_type, exception, traceback):
  41     print("%s: %s" % (exception_type.__name__, exception))
  42
  43
  44 #
  45 # Lexer
  46 #
  47 class VPPAPILexer(object):
  48     def __init__(self, filename):
  49         self.filename = filename
  50
  51     reserved = {
  52         'service': 'SERVICE',
  53         'rpc': 'RPC',
  54         'returns': 'RETURNS',
  55         'null': 'NULL',
  56         'stream': 'STREAM',
  57         'events': 'EVENTS',
  58         'define': 'DEFINE',
  59         'typedef': 'TYPEDEF',
  60         'enum': 'ENUM',
  61         'enumflag': 'ENUMFLAG',
  62         'typeonly': 'TYPEONLY',
  63         'manual_print': 'MANUAL_PRINT',
  64         'manual_endian': 'MANUAL_ENDIAN',
  65         'dont_trace': 'DONT_TRACE',
  66         'autoreply': 'AUTOREPLY',
  67         'autoendian': 'AUTOENDIAN',
  68         'option': 'OPTION',
  69         'u8': 'U8',
  70         'u16': 'U16',
  71         'u32': 'U32',
  72         'u64': 'U64',
  73         'i8': 'I8',
  74         'i16': 'I16',
  75         'i32': 'I32',
  76         'i64': 'I64',
  77         'f64': 'F64',
  78         'bool': 'BOOL',
  79         'string': 'STRING',
  80         'import': 'IMPORT',
  81         'true': 'TRUE',
  82         'false': 'FALSE',
  83         'union': 'UNION',
  84         'counters': 'COUNTERS',
  85         'paths': 'PATHS',
  86         'units': 'UNITS',
  87         'severity': 'SEVERITY',
  88         'type': 'TYPE',
  89         'description': 'DESCRIPTION',
  90     }
  91
  92     tokens = ['STRING_LITERAL',
  93               'ID', 'NUM'] + list(reserved.values())
  94
  95     t_ignore_LINE_COMMENT = '//.*'
  96
  97     def t_FALSE(self, t):
  98         r'false'
  99         t.value = False
 100         return t
 101
 102     def t_TRUE(self, t):
 103         r'false'
 104         t.value = True
 105         return t
 106
 107     def t_NUM(self, t):
 108         r'0[xX][0-9a-fA-F]+|-?\d+\.?\d*'
 109         base = 16 if t.value.startswith('0x') else 10
 110         if '.' in t.value:
 111             t.value = float(t.value)
 112         else:
 113             t.value = int(t.value, base)
 114         return t
 115
 116     def t_ID(self, t):
 117         r'[a-zA-Z_][a-zA-Z_0-9]*'
 118         # Check for reserved words
 119         t.type = VPPAPILexer.reserved.get(t.value, 'ID')
 120         return t
 121
 122     # C string
 123     def t_STRING_LITERAL(self, t):
 124         r'\"([^\\\n]|(\\.))*?\"'
 125         t.value = str(t.value).replace("\"", "")
 126         return t
 127
 128     # C or C++ comment (ignore)
 129     def t_comment(self, t):
 130         r'(/\*(.|\n)*?\*/)|(//.*)'
 131         t.lexer.lineno += t.value.count('\n')
 132
 133     # Error handling rule
 134     def t_error(self, t):
 135         raise ParseError("Illegal character '{}' ({})"
 136                          "in {}: line {}".format(t.value[0],
 137                                                  hex(ord(t.value[0])),
 138                                                  self.filename,
 139                                                  t.lexer.lineno))
 140
 141     # Define a rule so we can track line numbers
 142     def t_newline(self, t):
 143         r'\n+'
 144         t.lexer.lineno += len(t.value)
 145
 146     literals = ":{}[];=.,"
 147
 148     # A string containing ignored characters (spaces and tabs)
 149     t_ignore = ' \t'
 150
 151
 152 def vla_mark_length_field(block):
 153     if isinstance(block[-1], Array):
 154         lengthfield = block[-1].lengthfield
 155         for b in block:
 156             if b.fieldname == lengthfield:
 157                 b.is_lengthfield = True
 158
 159
 160 def vla_is_last_check(name, block):
 161     vla = False
 162     for i, b in enumerate(block):
 163         if isinstance(b, Array) and b.vla:
 164             vla = True
 165             if i + 1 < len(block):
 166                 raise ValueError(
 167                     'VLA field "{}" must be the last field in message "{}"'
 168                     .format(b.fieldname, name))
 169         elif b.fieldtype.startswith('vl_api_'):
 170             if global_types[b.fieldtype].vla:
 171                 vla = True
 172                 if i + 1 < len(block):
 173                     raise ValueError(
 174                         'VLA field "{}" must be the last '
 175                         'field in message "{}"'
 176                         .format(b.fieldname, name))
 177         elif b.fieldtype == 'string' and b.length == 0:
 178             vla = True
 179             if i + 1 < len(block):
 180                 raise ValueError(
 181                     'VLA field "{}" must be the last '
 182                     'field in message "{}"'
 183                     .format(b.fieldname, name))
 184     return vla
 185
 186
 187 class Processable:
 188     type = "<Invalid>"
 189
 190     def process(self, result):  # -> Dict
 191         result[self.type].append(self)
 192
 193
 194 class Service(Processable):
 195     type = 'Service'
 196
 197     def __init__(self, caller, reply, events=None, stream_message=None,
 198                  stream=False):
 199         self.caller = caller
 200         self.reply = reply
 201         self.stream = stream
 202         self.stream_message = stream_message
 203         self.events = [] if events is None else events
 204
 205
 206 class Typedef(Processable):
 207     type = 'Typedef'
 208
 209     def __init__(self, name, flags, block):
 210         self.name = name
 211         self.flags = flags
 212         self.block = block
 213         self.crc = str(block).encode()
 214         self.manual_print = False
 215         self.manual_endian = False
 216         for f in flags:
 217             if f == 'manual_print':
 218                 self.manual_print = True
 219             elif f == 'manual_endian':
 220                 self.manual_endian = True
 221         global_type_add(name, self)
 222
 223         self.vla = vla_is_last_check(name, block)
 224         vla_mark_length_field(self.block)
 225
 226     def process(self, result):
 227         result['types'].append(self)
 228
 229     def __repr__(self):
 230         return self.name + str(self.flags) + str(self.block)
 231
 232
 233 class Using(Processable):
 234     type = 'Using'
 235
 236     def __init__(self, name, flags, alias):
 237         self.name = name
 238         self.vla = False
 239         self.block = []
 240         self.manual_print = True
 241         self.manual_endian = True
 242
 243         self.manual_print = False
 244         self.manual_endian = False
 245         for f in flags:
 246             if f == 'manual_print':
 247                 self.manual_print = True
 248             elif f == 'manual_endian':
 249                 self.manual_endian = True
 250
 251         if isinstance(alias, Array):
 252             a = {'type': alias.fieldtype,
 253                  'length': alias.length}
 254         else:
 255             a = {'type': alias.fieldtype}
 256         self.alias = a
 257         self.using = alias
 258
 259         #
 260         # Should have been:
 261         #  self.crc = str(alias).encode()
 262         # but to be backwards compatible use the block ([])
 263         #
 264         self.crc = str(self.block).encode()
 265         global_type_add(name, self)
 266
 267     def process(self, result):  # -> Dict
 268         result['types'].append(self)
 269
 270     def __repr__(self):
 271         return self.name + str(self.alias)
 272
 273
 274 class Union(Processable):
 275     type = 'Union'
 276
 277     def __init__(self, name, flags, block):
 278         self.manual_print = False
 279         self.manual_endian = False
 280         self.name = name
 281
 282         for f in flags:
 283             if f == 'manual_print':
 284                 self.manual_print = True
 285             elif f == 'manual_endian':
 286                 self.manual_endian = True
 287
 288         self.block = block
 289         self.crc = str(block).encode()
 290         self.vla = vla_is_last_check(name, block)
 291
 292         global_type_add(name, self)
 293
 294     def process(self, result):
 295         result['types'].append(self)
 296
 297     def __repr__(self):
 298         return str(self.block)
 299
 300
 301 class Define(Processable):
 302     type = 'Define'
 303
 304     def __init__(self, name, flags, block):
 305         self.name = name
 306         self.flags = flags
 307         self.block = block
 308         self.dont_trace = False
 309         self.manual_print = False
 310         self.manual_endian = False
 311         self.autoreply = False
 312         self.autoendian = 0
 313         self.options = {}
 314         for f in flags:
 315             if f == 'dont_trace':
 316                 self.dont_trace = True
 317             elif f == 'manual_print':
 318                 self.manual_print = True
 319             elif f == 'manual_endian':
 320                 self.manual_endian = True
 321             elif f == 'autoreply':
 322                 self.autoreply = True
 323             elif f == 'autoendian':
 324                 self.autoendian = 1
 325
 326         remove = []
 327         for b in block:
 328             if isinstance(b, Option):
 329                 self.options[b.option] = b.value
 330                 remove.append(b)
 331
 332         block = [x for x in block if x not in remove]
 333         self.block = block
 334         self.vla = vla_is_last_check(name, block)
 335         vla_mark_length_field(self.block)
 336
 337         self.crc = str(block).encode()
 338
 339     def autoreply_block(self, name, parent):
 340         block = [Field('u32', 'context'),
 341                  Field('i32', 'retval')]
 342         # inherit the parent's options
 343         for k, v in parent.options.items():
 344             block.append(Option(k, v))
 345         return Define(name + '_reply', [], block)
 346
 347     def process(self, result):  # -> Dict
 348         tname = self.__class__.__name__
 349         result[tname].append(self)
 350         if self.autoreply:
 351             result[tname].append(self.autoreply_block(self.name, self))
 352
 353     def __repr__(self):
 354         return self.name + str(self.flags) + str(self.block)
 355
 356
 357 class Enum(Processable):
 358     type = 'Enum'
 359
 360     def __init__(self, name, block, enumtype='u32'):
 361         self.name = name
 362         self.enumtype = enumtype
 363         self.vla = False
 364         self.manual_print = False
 365
 366         count = 0
 367         block2 = []
 368         block3 = []
 369         bc_set = False
 370
 371         for b in block:
 372             if 'value' in b:
 373                 count = b['value']
 374             else:
 375                 count += 1
 376             block2.append([b['id'], count])
 377             try:
 378                 if b['option']['backwards_compatible']:
 379                     pass
 380                 bc_set = True
 381             except KeyError:
 382                 block3.append([b['id'], count])
 383                 if bc_set:
 384                     raise ValueError("Backward compatible enum must "
 385                                      "be last {!r} {!r}"
 386                                      .format(name, b['id']))
 387         self.block = block2
 388         self.crc = str(block3).encode()
 389         global_type_add(name, self)
 390
 391     def process(self, result):
 392         result['types'].append(self)
 393
 394     def __repr__(self):
 395         return self.name + str(self.block)
 396
 397
 398 class EnumFlag(Enum):
 399     type = 'EnumFlag'
 400
 401     def __init__(self, name, block, enumtype='u32'):
 402         super(EnumFlag, self).__init__(name, block, enumtype)
 403
 404         for b in self.block:
 405             if bin(b[1])[2:].count("1") > 1:
 406                 raise TypeError("%s is not a flag enum.  No element in a "
 407                                 "flag enum may have more than a "
 408                                 "single bit set." % self.name)
 409
 410
 411 class Import(Processable):
 412     type = 'Import'
 413     _initialized = False
 414
 415     def __new__(cls, *args, **kwargs):
 416         if args[0] not in seen_imports:
 417             instance = super().__new__(cls)
 418             instance._initialized = False
 419             seen_imports[args[0]] = instance
 420
 421         return seen_imports[args[0]]
 422
 423     def __init__(self, filename, revision):
 424         if self._initialized:
 425             return
 426         self.filename = filename
 427         # Deal with imports
 428         parser = VPPAPI(filename=filename, revision=revision)
 429         dirlist = dirlist_get()
 430         f = filename
 431         for dir in dirlist:
 432             f = os.path.join(dir, filename)
 433             if os.path.exists(f):
 434                 break
 435         self.result = parser.parse_filename(f, None)
 436         self._initialized = True
 437
 438     def __repr__(self):
 439         return self.filename
 440
 441
 442 class Option(Processable):
 443     type = 'Option'
 444
 445     def __init__(self, option, value=None):
 446         self.option = option
 447         self.value = value
 448         self.crc = str(option).encode()
 449
 450     def process(self, result):  # -> Dict
 451         result[self.type][self.option] = self.value
 452
 453     def __repr__(self):
 454         return str(self.option)
 455
 456     def __getitem__(self, index):
 457         return self.option[index]
 458
 459
 460 class Array(Processable):
 461     type = 'Array'
 462
 463     def __init__(self, fieldtype, name, length, modern_vla=False):
 464         self.fieldtype = fieldtype
 465         self.fieldname = name
 466         self.modern_vla = modern_vla
 467         if type(length) is str:
 468             self.lengthfield = length
 469             self.length = 0
 470             self.vla = True
 471         else:
 472             self.length = length
 473             self.lengthfield = None
 474             self.vla = False
 475
 476     def __repr__(self):
 477         return str([self.fieldtype, self.fieldname, self.length,
 478                     self.lengthfield])
 479
 480
 481 class Field(Processable):
 482     type = 'Field'
 483
 484     def __init__(self, fieldtype, name, limit=None):
 485         # limit field has been expanded to an options dict.
 486
 487         self.fieldtype = fieldtype
 488         self.is_lengthfield = False
 489
 490         if self.fieldtype == 'string':
 491             raise ValueError("The string type {!r} is an "
 492                              "array type ".format(name))
 493
 494         if name in keyword.kwlist:
 495             raise ValueError("Fieldname {!r} is a python keyword and is not "
 496                              "accessible via the python API. ".format(name))
 497         self.fieldname = name
 498         self.limit = limit
 499
 500     def __repr__(self):
 501         return str([self.fieldtype, self.fieldname])
 502
 503
 504 class Counter(Processable):
 505     type = 'Counter'
 506
 507     def __init__(self, path, counter):
 508         self.name = path
 509         self.block = counter
 510
 511     def process(self, result):  # -> Dict
 512         result['Counters'].append(self)
 513
 514
 515 class Paths(Processable):
 516     type = 'Paths'
 517
 518     def __init__(self, pathset):
 519         self.paths = pathset
 520
 521     def __repr__(self):
 522         return "%s(paths=%s)" % (
 523             self.__class__.__name__, self.paths
 524         )
 525
 526
 527 class Coord(object):
 528     """ Coordinates of a syntactic element. Consists of:
 529             - File name
 530             - Line number
 531             - (optional) column number, for the Lexer
 532     """
 533     __slots__ = ('file', 'line', 'column', '__weakref__')
 534
 535     def __init__(self, file, line, column=None):
 536         self.file = file
 537         self.line = line
 538         self.column = column
 539
 540     def __str__(self):
 541         str = "%s:%s" % (self.file, self.line)
 542         if self.column:
 543             str += ":%s" % self.column
 544         return str
 545
 546
 547 class ParseError(Exception):
 548     pass
 549
 550
 551 #
 552 # Grammar rules
 553 #
 554 class VPPAPIParser(object):
 555     tokens = VPPAPILexer.tokens
 556
 557     def __init__(self, filename, logger, revision=None):
 558         self.filename = filename
 559         self.logger = logger
 560         self.fields = []
 561         self.revision = revision
 562
 563     def _parse_error(self, msg, coord):
 564         raise ParseError("%s: %s" % (coord, msg))
 565
 566     def _parse_warning(self, msg, coord):
 567         if self.logger:
 568             self.logger.warning("%s: %s" % (coord, msg))
 569
 570     def _coord(self, lineno, column=None):
 571         return Coord(
 572             file=self.filename,
 573             line=lineno, column=column)
 574
 575     def _token_coord(self, p, token_idx):
 576         """ Returns the coordinates for the YaccProduction object 'p' indexed
 577             with 'token_idx'. The coordinate includes the 'lineno' and
 578             'column'. Both follow the lex semantic, starting from 1.
 579         """
 580         last_cr = p.lexer.lexdata.rfind('\n', 0, p.lexpos(token_idx))
 581         if last_cr < 0:
 582             last_cr = -1
 583         column = (p.lexpos(token_idx) - (last_cr))
 584         return self._coord(p.lineno(token_idx), column)
 585
 586     def p_slist(self, p):
 587         '''slist : stmt
 588                  | slist stmt'''
 589         if len(p) == 2:
 590             p[0] = [p[1]]
 591         else:
 592             p[0] = p[1] + [p[2]]
 593
 594     def p_stmt(self, p):
 595         '''stmt : define
 596                 | typedef
 597                 | option
 598                 | import
 599                 | enum
 600                 | enumflag
 601                 | union
 602                 | service
 603                 | paths
 604                 | counters'''
 605         p[0] = p[1]
 606
 607     def p_import(self, p):
 608         '''import : IMPORT STRING_LITERAL ';' '''
 609         p[0] = Import(p[2], revision=self.revision)
 610
 611     def p_path_elements(self, p):
 612         '''path_elements : path_element
 613                             | path_elements path_element'''
 614         if len(p) == 2:
 615             p[0] = p[1]
 616         else:
 617             if type(p[1]) is dict:
 618                 p[0] = [p[1], p[2]]
 619             else:
 620                 p[0] = p[1] + [p[2]]
 621
 622     def p_path_element(self, p):
 623         '''path_element : STRING_LITERAL STRING_LITERAL ';' '''
 624         p[0] = {'path': p[1], 'counter': p[2]}
 625
 626     def p_paths(self, p):
 627         '''paths : PATHS '{' path_elements '}' ';' '''
 628         p[0] = Paths(p[3])
 629
 630     def p_counters(self, p):
 631         '''counters : COUNTERS ID '{' counter_elements '}' ';' '''
 632         p[0] = Counter(p[2], p[4])
 633
 634     def p_counter_elements(self, p):
 635         '''counter_elements : counter_element
 636                             | counter_elements counter_element'''
 637         if len(p) == 2:
 638             p[0] = [p[1]]
 639         else:
 640             if type(p[1]) is dict:
 641                 p[0] = [p[1], p[2]]
 642             else:
 643                 p[0] = p[1] + [p[2]]
 644
 645     def p_counter_element(self, p):
 646         '''counter_element : ID '{' counter_statements '}' ';' '''
 647         p[0] = {**{'name': p[1]}, **p[3]}
 648
 649     def p_counter_statements(self, p):
 650         '''counter_statements : counter_statement
 651                         | counter_statements counter_statement'''
 652         if len(p) == 2:
 653             p[0] = p[1]
 654         else:
 655             p[0] = {**p[1], **p[2]}
 656
 657     def p_counter_statement(self, p):
 658         '''counter_statement : SEVERITY ID ';'
 659                              | UNITS STRING_LITERAL ';'
 660                              | DESCRIPTION STRING_LITERAL ';'
 661                              | TYPE ID ';' '''
 662         p[0] = {p[1]: p[2]}
 663
 664     def p_service(self, p):
 665         '''service : SERVICE '{' service_statements '}' ';' '''
 666         p[0] = p[3]
 667
 668     def p_service_statements(self, p):
 669         '''service_statements : service_statement
 670                         | service_statements service_statement'''
 671         if len(p) == 2:
 672             p[0] = [p[1]]
 673         else:
 674             p[0] = p[1] + [p[2]]
 675
 676     def p_service_statement(self, p):
 677         '''service_statement : RPC ID RETURNS NULL ';'
 678                              | RPC ID RETURNS ID ';'
 679                              | RPC ID RETURNS STREAM ID ';'
 680                              | RPC ID RETURNS ID EVENTS event_list ';' '''
 681         if p[2] == p[4]:
 682             # Verify that caller and reply differ
 683             self._parse_error(
 684                 'Reply ID ({}) should not be equal to Caller ID'.format(p[2]),
 685                 self._token_coord(p, 1))
 686         if len(p) == 8:
 687             p[0] = Service(p[2], p[4], p[6])
 688         elif len(p) == 7:
 689             p[0] = Service(p[2], p[5], stream=True)
 690         else:
 691             p[0] = Service(p[2], p[4])
 692
 693     def p_service_statement2(self, p):
 694         '''service_statement : RPC ID RETURNS ID STREAM ID ';' '''
 695         p[0] = Service(p[2], p[4], stream_message=p[6], stream=True)
 696
 697     def p_event_list(self, p):
 698         '''event_list : events
 699                       | event_list events '''
 700         if len(p) == 2:
 701             p[0] = [p[1]]
 702         else:
 703             p[0] = p[1] + [p[2]]
 704
 705     def p_event(self, p):
 706         '''events : ID
 707                   | ID ',' '''
 708         p[0] = p[1]
 709
 710     def p_enum(self, p):
 711         '''enum : ENUM ID '{' enum_statements '}' ';' '''
 712         p[0] = Enum(p[2], p[4])
 713
 714     def p_enum_type(self, p):
 715         ''' enum : ENUM ID ':' enum_size '{' enum_statements '}' ';' '''
 716         if len(p) == 9:
 717             p[0] = Enum(p[2], p[6], enumtype=p[4])
 718         else:
 719             p[0] = Enum(p[2], p[4])
 720
 721     def p_enumflag(self, p):
 722         '''enumflag : ENUMFLAG ID '{' enum_statements '}' ';' '''
 723         p[0] = EnumFlag(p[2], p[4])
 724
 725     def p_enumflag_type(self, p):
 726         ''' enumflag : ENUMFLAG ID ':' enumflag_size '{' enum_statements '}' ';' '''  # noqa : E502
 727         if len(p) == 9:
 728             p[0] = EnumFlag(p[2], p[6], enumtype=p[4])
 729         else:
 730             p[0] = EnumFlag(p[2], p[4])
 731
 732     def p_enum_size(self, p):
 733         ''' enum_size : U8
 734                       | U16
 735                       | U32
 736                       | I8
 737                       | I16
 738                       | I32 '''
 739         p[0] = p[1]
 740
 741     def p_enumflag_size(self, p):
 742         ''' enumflag_size : U8
 743                           | U16
 744                           | U32 '''
 745         p[0] = p[1]
 746
 747     def p_define(self, p):
 748         '''define : DEFINE ID '{' block_statements_opt '}' ';' '''
 749         self.fields = []
 750         p[0] = Define(p[2], [], p[4])
 751
 752     def p_define_flist(self, p):
 753         '''define : flist DEFINE ID '{' block_statements_opt '}' ';' '''
 754         # Legacy typedef
 755         if 'typeonly' in p[1]:
 756             self._parse_error('legacy typedef. use typedef: {} {}[{}];'
 757                               .format(p[1], p[2], p[4]),
 758                               self._token_coord(p, 1))
 759         else:
 760             p[0] = Define(p[3], p[1], p[5])
 761
 762     def p_flist(self, p):
 763         '''flist : flag
 764                  | flist flag'''
 765         if len(p) == 2:
 766             p[0] = [p[1]]
 767         else:
 768             p[0] = p[1] + [p[2]]
 769
 770     def p_flag(self, p):
 771         '''flag : MANUAL_PRINT
 772                 | MANUAL_ENDIAN
 773                 | DONT_TRACE
 774                 | TYPEONLY
 775                 | AUTOENDIAN
 776                 | AUTOREPLY'''
 777         if len(p) == 1:
 778             return
 779         p[0] = p[1]
 780
 781     def p_typedef(self, p):
 782         '''typedef : TYPEDEF ID '{' block_statements_opt '}' ';' '''
 783         p[0] = Typedef(p[2], [], p[4])
 784
 785     def p_typedef_flist(self, p):
 786         '''typedef : flist TYPEDEF ID '{' block_statements_opt '}' ';' '''
 787         p[0] = Typedef(p[3], p[1], p[5])
 788
 789     def p_typedef_alias(self, p):
 790         '''typedef : TYPEDEF declaration '''
 791         p[0] = Using(p[2].fieldname, [], p[2])
 792
 793     def p_typedef_alias_flist(self, p):
 794         '''typedef : flist TYPEDEF declaration '''
 795         p[0] = Using(p[3].fieldname, p[1], p[3])
 796
 797     def p_block_statements_opt(self, p):
 798         '''block_statements_opt : block_statements '''
 799         p[0] = p[1]
 800
 801     def p_block_statements(self, p):
 802         '''block_statements : block_statement
 803                             | block_statements block_statement'''
 804         if len(p) == 2:
 805             p[0] = [p[1]]
 806         else:
 807             p[0] = p[1] + [p[2]]
 808
 809     def p_block_statement(self, p):
 810         '''block_statement : declaration
 811                            | option '''
 812         p[0] = p[1]
 813
 814     def p_enum_statements(self, p):
 815         '''enum_statements : enum_statement
 816                            | enum_statements enum_statement'''
 817         if len(p) == 2:
 818             p[0] = [p[1]]
 819         else:
 820             p[0] = p[1] + [p[2]]
 821
 822     def p_enum_statement(self, p):
 823         '''enum_statement : ID '=' NUM ','
 824                           | ID ','
 825                           | ID '[' field_options ']' ','
 826                           | ID '=' NUM '[' field_options ']' ',' '''
 827         if len(p) == 3:
 828             p[0] = {'id': p[1]}
 829         elif len(p) == 5:
 830             p[0] = {'id': p[1], 'value': p[3]}
 831         elif len(p) == 6:
 832             p[0] = {'id': p[1], 'option': p[3]}
 833         elif len(p) == 8:
 834             p[0] = {'id': p[1], 'value': p[3], 'option': p[5]}
 835         else:
 836             self._parse_error('ERROR', self._token_coord(p, 1))
 837
 838     def p_field_options(self, p):
 839         '''field_options : field_option
 840                            | field_options field_option'''
 841         if len(p) == 2:
 842             p[0] = p[1]
 843         else:
 844             p[0] = {**p[1], **p[2]}
 845
 846     def p_field_option(self, p):
 847         '''field_option : ID
 848                         | ID '=' assignee ','
 849                         | ID '=' assignee
 850
 851         '''
 852         if len(p) == 2:
 853             p[0] = {p[1]: None}
 854         else:
 855             p[0] = {p[1]: p[3]}
 856
 857     def p_variable_name(self, p):
 858         '''variable_name : ID
 859                          | TYPE
 860                          | SEVERITY
 861                          | DESCRIPTION
 862                          | COUNTERS
 863                          | PATHS
 864         '''
 865         p[0] = p[1]
 866
 867     def p_declaration(self, p):
 868         '''declaration : type_specifier variable_name ';'
 869                        | type_specifier variable_name '[' field_options ']' ';'
 870         '''
 871         if len(p) == 7:
 872             p[0] = Field(p[1], p[2], p[4])
 873         elif len(p) == 4:
 874             p[0] = Field(p[1], p[2])
 875         else:
 876             self._parse_error('ERROR', self._token_coord(p, 1))
 877         self.fields.append(p[2])
 878
 879     def p_declaration_array_vla(self, p):
 880         '''declaration : type_specifier variable_name '[' ']' ';' '''
 881         p[0] = Array(p[1], p[2], 0, modern_vla=True)
 882
 883     def p_declaration_array(self, p):
 884         '''declaration : type_specifier variable_name '[' NUM ']' ';'
 885                        | type_specifier variable_name '[' ID ']' ';' '''
 886
 887         if len(p) != 7:
 888             return self._parse_error(
 889                 'array: %s' % p.value,
 890                 self._coord(lineno=p.lineno))
 891
 892         # Make this error later
 893         if type(p[4]) is int and p[4] == 0:
 894             # XXX: Line number is wrong
 895             self._parse_warning('Old Style VLA: {} {}[{}];'
 896                                 .format(p[1], p[2], p[4]),
 897                                 self._token_coord(p, 1))
 898
 899         if type(p[4]) is str and p[4] not in self.fields:
 900             # Verify that length field exists
 901             self._parse_error('Missing length field: {} {}[{}];'
 902                               .format(p[1], p[2], p[4]),
 903                               self._token_coord(p, 1))
 904         p[0] = Array(p[1], p[2], p[4])
 905
 906     def p_option(self, p):
 907         '''option : OPTION ID '=' assignee ';'
 908                   | OPTION ID ';' '''
 909         if len(p) == 4:
 910             p[0] = Option(p[2])
 911         else:
 912             p[0] = Option(p[2], p[4])
 913
 914     def p_assignee(self, p):
 915         '''assignee : NUM
 916                     | TRUE
 917                     | FALSE
 918                     | STRING_LITERAL '''
 919         p[0] = p[1]
 920
 921     def p_type_specifier(self, p):
 922         '''type_specifier : U8
 923                           | U16
 924                           | U32
 925                           | U64
 926                           | I8
 927                           | I16
 928                           | I32
 929                           | I64
 930                           | F64
 931                           | BOOL
 932                           | STRING'''
 933         p[0] = p[1]
 934
 935     # Do a second pass later to verify that user defined types are defined
 936     def p_typedef_specifier(self, p):
 937         '''type_specifier : ID '''
 938         if p[1] not in global_types:
 939             self._parse_error('Undefined type: {}'.format(p[1]),
 940                               self._token_coord(p, 1))
 941         p[0] = p[1]
 942
 943     def p_union(self, p):
 944         '''union : UNION ID '{' block_statements_opt '}' ';' '''
 945         p[0] = Union(p[2], [], p[4])
 946
 947     def p_union_flist(self, p):
 948         '''union : flist UNION ID '{' block_statements_opt '}' ';' '''
 949         p[0] = Union(p[3], p[1], p[5])
 950
 951     # Error rule for syntax errors
 952     def p_error(self, p):
 953         if p:
 954             self._parse_error(
 955                 'before: %s' % p.value,
 956                 self._coord(lineno=p.lineno))
 957         else:
 958             self._parse_error('At end of input', self.filename)
 959
 960
 961 class VPPAPI():
 962
 963     def __init__(self, debug=False, filename='', logger=None, revision=None):
 964         self.lexer = lex.lex(module=VPPAPILexer(filename), debug=debug)
 965         self.parser = yacc.yacc(module=VPPAPIParser(filename, logger,
 966                                                     revision=revision),
 967                                 write_tables=False, debug=debug)
 968         self.logger = logger
 969         self.revision = revision
 970         self.filename = filename
 971
 972     def parse_string(self, code, debug=0, lineno=1):
 973         self.lexer.lineno = lineno
 974         return self.parser.parse(code, lexer=self.lexer, debug=debug)
 975
 976     def parse_fd(self, fd, debug=0):
 977         data = fd.read()
 978         return self.parse_string(data, debug=debug)
 979
 980     def parse_filename(self, filename, debug=0):
 981         if self.revision:
 982             git_show = 'git show {}:{}'.format(self.revision, filename)
 983             proc = Popen(git_show.split(), stdout=PIPE, encoding='utf-8')
 984             try:
 985                 data, errs = proc.communicate()
 986                 if proc.returncode != 0:
 987                     print('File not found: {}:{}'
 988                           .format(self.revision, filename), file=sys.stderr)
 989                     sys.exit(2)
 990                 return self.parse_string(data, debug=debug)
 991             except Exception:
 992                 sys.exit(3)
 993         else:
 994             try:
 995                 with open(filename, encoding='utf-8') as fd:
 996                     return self.parse_fd(fd, None)
 997             except FileNotFoundError:
 998                 print('File not found: {}'.format(filename), file=sys.stderr)
 999                 sys.exit(2)
1000
1001     def process(self, objs):
1002         s = {}
1003         s['Option'] = {}
1004         s['Define'] = []
1005         s['Service'] = []
1006         s['types'] = []
1007         s['Import'] = []
1008         s['Counters'] = []
1009         s['Paths'] = []
1010         crc = 0
1011         for o in objs:
1012             try:
1013                 crc = binascii.crc32(o.crc, crc) & 0xffffffff
1014             except AttributeError:
1015                 pass
1016
1017             if type(o) is list:
1018                 for o2 in o:
1019                     if isinstance(o2, Service):
1020                         o2.process(s)
1021             else:
1022                 o.process(s)
1023
1024         msgs = {d.name: d for d in s['Define']}
1025         svcs = {s.caller: s for s in s['Service']}
1026         replies = {s.reply: s for s in s['Service']}
1027         seen_services = {}
1028
1029         s['file_crc'] = crc
1030
1031         for service in svcs:
1032             if service not in msgs:
1033                 raise ValueError(
1034                     'Service definition refers to unknown message'
1035                     ' definition: {}'.format(service))
1036             if svcs[service].reply != 'null' and \
1037                svcs[service].reply not in msgs:
1038                 raise ValueError('Service definition refers to unknown message'
1039                                  ' definition in reply: {}'
1040                                  .format(svcs[service].reply))
1041             if service in replies:
1042                 raise ValueError('Service definition refers to message'
1043                                  ' marked as reply: {}'.format(service))
1044             for event in svcs[service].events:
1045                 if event not in msgs:
1046                     raise ValueError('Service definition refers to unknown '
1047                                      'event: {} in message: {}'
1048                                      .format(event, service))
1049                 seen_services[event] = True
1050
1051         # Create services implicitly
1052         for d in msgs:
1053             if d in seen_services:
1054                 continue
1055             if d.endswith('_reply'):
1056                 if d[:-6] in svcs:
1057                     continue
1058                 if d[:-6] not in msgs:
1059                     raise ValueError('{} missing calling message'
1060                                      .format(d))
1061                 continue
1062             if d.endswith('_dump'):
1063                 if d in svcs:
1064                     continue
1065                 if d[:-5]+'_details' in msgs:
1066                     s['Service'].append(Service(d, d[:-5]+'_details',
1067                                                 stream=True))
1068                 else:
1069                     raise ValueError('{} missing details message'
1070                                      .format(d))
1071                 continue
1072
1073             if d.endswith('_details'):
1074                 if d[:-8]+'_get' in msgs:
1075                     if d[:-8]+'_get' in svcs:
1076                         continue
1077                     raise ValueError('{} should be in a stream service'
1078                                      .format(d[:-8]+'_get'))
1079                 if d[:-8]+'_dump' in msgs:
1080                     continue
1081                 raise ValueError('{} missing dump or get message'
1082                                  .format(d))
1083
1084             if d in svcs:
1085                 continue
1086             if d+'_reply' in msgs:
1087                 s['Service'].append(Service(d, d+'_reply'))
1088             else:
1089                 raise ValueError(
1090                     '{} missing reply message ({}) or service definition'
1091                     .format(d, d+'_reply'))
1092
1093         return s
1094
1095     def process_imports(self, objs, in_import, result):  # -> List
1096         for o in objs:
1097             # Only allow the following object types from imported file
1098             if in_import and not isinstance(o, (Enum, Import, Typedef,
1099                                                 Union, Using)):
1100                 continue
1101             if isinstance(o, Import):
1102                 result.append(o)
1103                 result = self.process_imports(o.result, True, result)
1104             else:
1105                 result.append(o)
1106         return result
1107
1108
1109 # Add message ids to each message.
1110 def add_msg_id(s):
1111     for o in s:
1112         o.block.insert(0, Field('u16', '_vl_msg_id'))
1113     return s
1114
1115
1116 dirlist = []
1117
1118
1119 def dirlist_add(dirs):
1120     global dirlist
1121     if dirs:
1122         dirlist = dirlist + dirs
1123
1124
1125 def dirlist_get():
1126     return dirlist
1127
1128
1129 def foldup_blocks(block, crc):
1130     for b in block:
1131         # Look up CRC in user defined types
1132         if b.fieldtype.startswith('vl_api_'):
1133             # Recursively
1134             t = global_types[b.fieldtype]
1135             try:
1136                 crc = binascii.crc32(t.crc, crc) & 0xffffffff
1137                 crc = foldup_blocks(t.block, crc)
1138             except AttributeError:
1139                 pass
1140     return crc
1141
1142
1143 # keep the CRCs of the existing types of messages compatible with the
1144 # old "erroneous" way of calculating the CRC. For that - make a pointed
1145 # adjustment of the CRC function.
1146 # This is the purpose of the first element of the per-message dictionary.
1147 # The second element is there to avoid weakening the duplicate-detecting
1148 # properties of crc32. This way, if the new way of calculating the CRC
1149 # happens to collide with the old (buggy) way - we will still get
1150 # a different result and fail the comparison.
1151
1152 fixup_crc_dict = {
1153         "abf_policy_add_del": {0xc6131197: 0xee66f93e},
1154         "abf_policy_details": {0xb7487fa4: 0x6769e504},
1155         "acl_add_replace": {0xee5c2f18: 0x1cabdeab},
1156         "acl_details": {0x95babae0: 0x7a97f21c},
1157         "macip_acl_add": {0xce6fbad0: 0xd648fd0a},
1158         "macip_acl_add_replace": {0x2a461dd4: 0xe34402a7},
1159         "macip_acl_details": {0x27135b59: 0x57c7482f},
1160         "dhcp_proxy_config": {0x4058a689: 0x6767230e},
1161         "dhcp_client_config": {0x1af013ea: 0x959b80a3},
1162         "dhcp_compl_event": {0x554a44e5: 0xe908fd1d},
1163         "dhcp_client_details": {0x3c5cd28a: 0xacd82f5a},
1164         "dhcp_proxy_details": {0xdcbaf540: 0xce16f044},
1165         "dhcp6_send_client_message": {0xf8222476: 0xf6f14ef0},
1166         "dhcp6_pd_send_client_message": {0x3739fd8d: 0x64badb8},
1167         "dhcp6_reply_event": {0x85b7b17e: 0x9f3af9e5},
1168         "dhcp6_pd_reply_event": {0x5e878029: 0xcb3e462b},
1169         "ip6_add_del_address_using_prefix": {0x3982f30a: 0x9b3d11e0},
1170         "gbp_bridge_domain_add": {0x918e8c01: 0x8454bfdf},
1171         "gbp_bridge_domain_details": {0x51d51be9: 0x2acd15f9},
1172         "gbp_route_domain_add": {0x204c79e1: 0x2d0afe38},
1173         "gbp_route_domain_details": {0xa78bfbca: 0x8ab11375},
1174         "gbp_endpoint_add": {0x7b3af7de: 0x9ce16d5a},
1175         "gbp_endpoint_details": {0x8dd8fbd3: 0x8aecb60},
1176         "gbp_endpoint_group_add": {0x301ddf15: 0x8e0f4054},
1177         "gbp_endpoint_group_details": {0xab71d723: 0x8f38292c},
1178         "gbp_subnet_add_del": {0xa8803c80: 0x888aca35},
1179         "gbp_subnet_details": {0xcbc5ca18: 0x4ed84156},
1180         "gbp_contract_add_del": {0xaa8d652d: 0x553e275b},
1181         "gbp_contract_details": {0x65dec325: 0x2a18db6e},
1182         "gbp_ext_itf_add_del": {0x7606d0e1: 0x12ed5700},
1183         "gbp_ext_itf_details": {0x519c3d3c: 0x408a45c0},
1184         "gtpu_add_del_tunnel": {0xca983a2b: 0x9a9c0426},
1185         "gtpu_tunnel_update_tteid": {0x79f33816: 0x8a2db108},
1186         "gtpu_tunnel_details": {0x27f434ae: 0x4535cf95},
1187         "igmp_listen": {0x19a49f1e: 0x3f93a51a},
1188         "igmp_details": {0x38f09929: 0x52f12a89},
1189         "igmp_event": {0x85fe93ec: 0xd7696eaf},
1190         "igmp_group_prefix_set": {0x5b14a5ce: 0xd4f20ac5},
1191         "igmp_group_prefix_details": {0x259ccd81: 0xc3b3c526},
1192         "ikev2_set_responder": {0xb9aa4d4e: 0xf0d3dc80},
1193         "vxlan_gpe_ioam_export_enable_disable": {0xd4c76d3a: 0xe4d4ebfa},
1194         "ioam_export_ip6_enable_disable": {0xd4c76d3a: 0xe4d4ebfa},
1195         "vxlan_gpe_ioam_vni_enable": {0xfbb5fb1: 0x997161fb},
1196         "vxlan_gpe_ioam_vni_disable": {0xfbb5fb1: 0x997161fb},
1197         "vxlan_gpe_ioam_transit_enable": {0x3d3ec657: 0x553f5b7b},
1198         "vxlan_gpe_ioam_transit_disable": {0x3d3ec657: 0x553f5b7b},
1199         "udp_ping_add_del": {0xfa2628fc: 0xc692b188},
1200         "l3xc_update": {0xe96aabdf: 0x787b1d3},
1201         "l3xc_details": {0xbc5bf852: 0xd4f69627},
1202         "sw_interface_lacp_details": {0xd9a83d2f: 0x745ae0ba},
1203         "lb_conf": {0x56cd3261: 0x22ddb739},
1204         "lb_add_del_vip": {0x6fa569c7: 0xd15b7ddc},
1205         "lb_add_del_as": {0x35d72500: 0x78628987},
1206         "lb_vip_dump": {0x56110cb7: 0xc7bcb124},
1207         "lb_vip_details": {0x1329ec9b: 0x8f39bed},
1208         "lb_as_details": {0x8d24c29e: 0x9c39f60e},
1209         "mactime_add_del_range": {0xcb56e877: 0x101858ef},
1210         "mactime_details": {0xda25b13a: 0x44921c06},
1211         "map_add_domain": {0x249f195c: 0x7a5a18c9},
1212         "map_domain_details": {0x796edb50: 0xfc1859dd},
1213         "map_param_add_del_pre_resolve": {0xdae5af03: 0x17008c66},
1214         "map_param_get_reply": {0x26272c90: 0x28092156},
1215         "memif_details": {0xda34feb9: 0xd0382c4c},
1216         "dslite_add_del_pool_addr_range": {0xde2a5b02: 0xc448457a},
1217         "dslite_set_aftr_addr": {0x78b50fdf: 0x1e955f8d},
1218         "dslite_get_aftr_addr_reply": {0x8e23608e: 0x38e30db1},
1219         "dslite_set_b4_addr": {0x78b50fdf: 0x1e955f8d},
1220         "dslite_get_b4_addr_reply": {0x8e23608e: 0x38e30db1},
1221         "nat44_add_del_address_range": {0x6f2b8055: 0xd4c7568c},
1222         "nat44_address_details": {0xd1beac1: 0x45410ac4},
1223         "nat44_add_del_static_mapping": {0x5ae5f03e: 0xe165e83b},
1224         "nat44_static_mapping_details": {0x6cb40b2: 0x1a433ef7},
1225         "nat44_add_del_identity_mapping": {0x2faaa22: 0x8e12743f},
1226         "nat44_identity_mapping_details": {0x2a52a030: 0x36d21351},
1227         "nat44_add_del_interface_addr": {0x4aed50c0: 0xfc835325},
1228         "nat44_interface_addr_details": {0xe4aca9ca: 0x3e687514},
1229         "nat44_user_session_details": {0x2cf6e16d: 0x1965fd69},
1230         "nat44_add_del_lb_static_mapping": {0x4f68ee9d: 0x53b24611},
1231         "nat44_lb_static_mapping_add_del_local": {0x7ca47547: 0x2910a151},
1232         "nat44_lb_static_mapping_details": {0xed5ce876: 0x2267b9e8},
1233         "nat44_del_session": {0x15a5bf8c: 0x4c49c387},
1234         "nat_det_add_del_map": {0x1150a190: 0x112fde05},
1235         "nat_det_map_details": {0xad91dc83: 0x88000ee1},
1236         "nat_det_close_session_out": {0xf6b259d1: 0xc1b6cbfb},
1237         "nat_det_close_session_in": {0x3c68e073: 0xa10ef64},
1238         "nat64_add_del_pool_addr_range": {0xa3b944e3: 0x21234ef3},
1239         "nat64_add_del_static_bib": {0x1c404de5: 0x90fae58a},
1240         "nat64_bib_details": {0x43bc3ddf: 0x62c8541d},
1241         "nat64_st_details": {0xdd3361ed: 0xc770d620},
1242         "nat66_add_del_static_mapping": {0x3ed88f71: 0xfb64e50b},
1243         "nat66_static_mapping_details": {0xdf39654b: 0x5c568448},
1244         "nsh_add_del_map": {0xa0f42b0: 0x898d857d},
1245         "nsh_map_details": {0x2fefcf49: 0xb34ac8a1},
1246         "nsim_cross_connect_enable_disable": {0x9c3ead86: 0x16f70bdf},
1247         "pppoe_add_del_session": {0xf6fd759e: 0x46ace853},
1248         "pppoe_session_details": {0x4b8e8a4a: 0x332bc742},
1249         "stn_add_del_rule": {0x224c6edd: 0x53f751e6},
1250         "stn_rules_details": {0xa51935a6: 0xb0f6606c},
1251         "svs_route_add_del": {0xe49bc63c: 0xd39e31fc},
1252         "svs_details": {0x6282cd55: 0xb8523d64},
1253         "vmxnet3_details": {0x6a1a5498: 0x829ba055},
1254         "vrrp_vr_add_del": {0xc5cf15aa: 0x6dc4b881},
1255         "vrrp_vr_details": {0x46edcebd: 0x412fa71},
1256         "vrrp_vr_set_peers": {0x20bec71f: 0xbaa2e52b},
1257         "vrrp_vr_peer_details": {0x3d99c108: 0xabd9145e},
1258         "vrrp_vr_track_if_add_del": {0xd67df299: 0x337f4ba4},
1259         "vrrp_vr_track_if_details": {0x73c36f81: 0x99bcca9c},
1260         "proxy_arp_add_del": {0x1823c3e7: 0x85486cbd},
1261         "proxy_arp_details": {0x5b948673: 0x9228c150},
1262         "bfd_udp_get_echo_source_reply": {0xe3d736a1: 0x1e00cfce},
1263         "bfd_udp_add": {0x939cd26a: 0x7a6d1185},
1264         "bfd_udp_mod": {0x913df085: 0x783a3ff6},
1265         "bfd_udp_del": {0xdcb13a89: 0x8096514d},
1266         "bfd_udp_session_details": {0x9fb2f2d: 0x60653c02},
1267         "bfd_udp_session_set_flags": {0x4b4bdfd: 0xcf313851},
1268         "bfd_udp_auth_activate": {0x21fd1bdb: 0x493ee0ec},
1269         "bfd_udp_auth_deactivate": {0x9a05e2e0: 0x99978c32},
1270         "bier_route_add_del": {0xfd02f3ea: 0xf29edca0},
1271         "bier_route_details": {0x4008caee: 0x39ee6a56},
1272         "bier_disp_entry_add_del": {0x9eb80cb4: 0x648323eb},
1273         "bier_disp_entry_details": {0x84c218f1: 0xe5b039a9},
1274         "bond_create": {0xf1dbd4ff: 0x48883c7e},
1275         "bond_enslave": {0xe7d14948: 0x76ecfa7},
1276         "sw_interface_bond_details": {0xbb7c929b: 0xf5ef2106},
1277         "pipe_create_reply": {0xb7ce310c: 0xd4c2c2b3},
1278         "pipe_details": {0xc52b799d: 0x43ac107a},
1279         "tap_create_v2": {0x2d0d6570: 0x445835fd},
1280         "sw_interface_tap_v2_details": {0x1e2b2a47: 0xe53c16de},
1281         "sw_interface_vhost_user_details": {0xcee1e53: 0x98530df1},
1282         "virtio_pci_create": {0x1944f8db: 0xa9f1370c},
1283         "sw_interface_virtio_pci_details": {0x6ca9c167: 0x16187f3a},
1284         "p2p_ethernet_add": {0x36a1a6dc: 0xeeb8e717},
1285         "p2p_ethernet_del": {0x62f81c8c: 0xb62c386},
1286         "geneve_add_del_tunnel": {0x99445831: 0x976693b5},
1287         "geneve_tunnel_details": {0x6b16eb24: 0xe27e2748},
1288         "gre_tunnel_add_del": {0xa27d7f17: 0x6efc9c22},
1289         "gre_tunnel_details": {0x24435433: 0x3bfbf1},
1290         "sw_interface_set_flags": {0xf5aec1b8: 0x6a2b491a},
1291         "sw_interface_event": {0x2d3d95a7: 0xf709f78d},
1292         "sw_interface_details": {0x6c221fc7: 0x17b69fa2},
1293         "sw_interface_add_del_address": {0x5463d73b: 0x5803d5c4},
1294         "sw_interface_set_unnumbered": {0x154a6439: 0x938ef33b},
1295         "sw_interface_set_mac_address": {0xc536e7eb: 0x6aca746a},
1296         "sw_interface_set_rx_mode": {0xb04d1cfe: 0x780f5cee},
1297         "sw_interface_rx_placement_details": {0x9e44a7ce: 0xf6d7d024},
1298         "create_subif": {0x790ca755: 0xcb371063},
1299         "ip_neighbor_add_del": {0x607c257: 0x105518b6},
1300         "ip_neighbor_dump": {0xd817a484: 0xcd831298},
1301         "ip_neighbor_details": {0xe29d79f0: 0x870e80b9},
1302         "want_ip_neighbor_events": {0x73e70a86: 0x1a312870},
1303         "ip_neighbor_event": {0xbdb092b2: 0x83933131},
1304         "ip_route_add_del": {0xb8ecfe0d: 0xc1ff832d},
1305         "ip_route_details": {0xbda8f315: 0xd1ffaae1},
1306         "ip_route_lookup": {0x710d6471: 0xe2986185},
1307         "ip_route_lookup_reply": {0x5d8febcb: 0xae99de8e},
1308         "ip_mroute_add_del": {0x85d762f3: 0xf6627d17},
1309         "ip_mroute_details": {0x99341a45: 0xc1cb4b44},
1310         "ip_address_details": {0xee29b797: 0xb1199745},
1311         "ip_unnumbered_details": {0xcc59bd42: 0xaa12a483},
1312         "mfib_signal_details": {0x6f4a4cfb: 0x64398a9a},
1313         "ip_punt_redirect": {0x6580f635: 0xa9a5592c},
1314         "ip_punt_redirect_details": {0x2cef63e7: 0x3924f5d3},
1315         "ip_container_proxy_add_del": {0x7df1dff1: 0x91189f40},
1316         "ip_container_proxy_details": {0xa8085523: 0xee460e8},
1317         "ip_source_and_port_range_check_add_del": {0x92a067e3: 0x8bfc76f2},
1318         "sw_interface_ip6_set_link_local_address": {0x1c10f15f: 0x2931d9fa},
1319         "ip_reassembly_enable_disable": {0xeb77968d: 0x885c85a6},
1320         "set_punt": {0xaa83d523: 0x83799618},
1321         "punt_socket_register": {0x95268cbf: 0xc8cd10fa},
1322         "punt_socket_details": {0xde575080: 0x1de0ce75},
1323         "punt_socket_deregister": {0x98fc9102: 0x98a444f4},
1324         "sw_interface_ip6nd_ra_prefix": {0x82cc1b28: 0xe098785f},
1325         "ip6nd_proxy_add_del": {0xc2e4a686: 0x3fdf6659},
1326         "ip6nd_proxy_details": {0x30b9ff4a: 0xd35be8ff},
1327         "ip6_ra_event": {0x364c1c5: 0x47e8cfbe},
1328         "set_ipfix_exporter": {0x5530c8a0: 0x69284e07},
1329         "ipfix_exporter_details": {0xdedbfe4: 0x11e07413},
1330         "ipip_add_tunnel": {0x2ac399f5: 0xa9decfcd},
1331         "ipip_6rd_add_tunnel": {0xb9ec1863: 0x56e93cc0},
1332         "ipip_tunnel_details": {0xd31cb34e: 0x53236d75},
1333         "ipsec_spd_entry_add_del": {0x338b7411: 0x9f384b8d},
1334         "ipsec_spd_details": {0x5813d7a2: 0xf2222790},
1335         "ipsec_sad_entry_add_del": {0xab64b5c6: 0xb8def364},
1336         "ipsec_tunnel_protect_update": {0x30d5f133: 0x143f155d},
1337         "ipsec_tunnel_protect_del": {0xcd239930: 0xddd2ba36},
1338         "ipsec_tunnel_protect_details": {0x21663a50: 0xac6c823b},
1339         "ipsec_tunnel_if_add_del": {0x20e353fa: 0x2b135e68},
1340         "ipsec_sa_details": {0x345d14a7: 0xb30c7f41},
1341         "l2_xconnect_details": {0x472b6b67: 0xc8aa6b37},
1342         "l2_fib_table_details": {0xa44ef6b8: 0xe8d2fc72},
1343         "l2fib_add_del": {0xeddda487: 0xf29d796c},
1344         "l2_macs_event": {0x44b8fd64: 0x2eadfc8b},
1345         "bridge_domain_details": {0xfa506fd: 0x979f549d},
1346         "l2_interface_pbb_tag_rewrite": {0x38e802a8: 0x612efa5a},
1347         "l2_patch_add_del": {0xa1f6a6f3: 0x522f3445},
1348         "sw_interface_set_l2_xconnect": {0x4fa28a85: 0x1aaa2dbb},
1349         "sw_interface_set_l2_bridge": {0xd0678b13: 0x2e483cd0},
1350         "bd_ip_mac_add_del": {0x257c869: 0x5f2b84e2},
1351         "bd_ip_mac_details": {0x545af86a: 0xa52f8044},
1352         "l2_arp_term_event": {0x6963e07a: 0x85ff71ea},
1353         "l2tpv3_create_tunnel": {0x15bed0c2: 0x596892cb},
1354         "sw_if_l2tpv3_tunnel_details": {0x50b88993: 0x1dab5c7e},
1355         "lisp_add_del_local_eid": {0x4e5a83a2: 0x21f573bd},
1356         "lisp_add_del_map_server": {0xce19e32d: 0x6598ea7c},
1357         "lisp_add_del_map_resolver": {0xce19e32d: 0x6598ea7c},
1358         "lisp_use_petr": {0xd87dbad9: 0x9e141831},
1359         "show_lisp_use_petr_reply": {0x22b9a4b0: 0xdcad8a81},
1360         "lisp_add_del_remote_mapping": {0x6d5c789e: 0xfae8ed77},
1361         "lisp_add_del_adjacency": {0x2ce0e6f6: 0xcf5edb61},
1362         "lisp_locator_details": {0x2c620ffe: 0xc0c4c2a7},
1363         "lisp_eid_table_details": {0x1c29f792: 0x4bc32e3a},
1364         "lisp_eid_table_dump": {0x629468b5: 0xb959b73b},
1365         "lisp_adjacencies_get_reply": {0x807257bf: 0x3f97bcdd},
1366         "lisp_map_resolver_details": {0x3e78fc57: 0x82a09deb},
1367         "lisp_map_server_details": {0x3e78fc57: 0x82a09deb},
1368         "one_add_del_local_eid": {0x4e5a83a2: 0x21f573bd},
1369         "one_add_del_map_server": {0xce19e32d: 0x6598ea7c},
1370         "one_add_del_map_resolver": {0xce19e32d: 0x6598ea7c},
1371         "one_use_petr": {0xd87dbad9: 0x9e141831},
1372         "show_one_use_petr_reply": {0x84a03528: 0x10e744a6},
1373         "one_add_del_remote_mapping": {0x6d5c789e: 0xfae8ed77},
1374         "one_add_del_l2_arp_entry": {0x1aa5e8b3: 0x33209078},
1375         "one_l2_arp_entries_get_reply": {0xb0dd200f: 0xb0a47bbe},
1376         "one_add_del_ndp_entry": {0xf8a287c: 0xd1629a2f},
1377         "one_ndp_entries_get_reply": {0x70719b1a: 0xbd34161},
1378         "one_add_del_adjacency": {0x9e830312: 0xe48e7afe},
1379         "one_locator_details": {0x2c620ffe: 0xc0c4c2a7},
1380         "one_eid_table_details": {0x1c29f792: 0x4bc32e3a},
1381         "one_eid_table_dump": {0xbd190269: 0x95151038},
1382         "one_adjacencies_get_reply": {0x85bab89: 0xa8ed89a5},
1383         "one_map_resolver_details": {0x3e78fc57: 0x82a09deb},
1384         "one_map_server_details": {0x3e78fc57: 0x82a09deb},
1385         "one_stats_details": {0x2eb74678: 0xff6ef238},
1386         "gpe_add_del_fwd_entry": {0xf0847644: 0xde6df50f},
1387         "gpe_fwd_entries_get_reply": {0xc4844876: 0xf9f53f1b},
1388         "gpe_fwd_entry_path_details": {0x483df51a: 0xee80b19a},
1389         "gpe_add_del_native_fwd_rpath": {0x43fc8b54: 0x812da2f2},
1390         "gpe_native_fwd_rpaths_get_reply": {0x7a1ca5a2: 0x79d54eb9},
1391         "sw_interface_set_lldp": {0x57afbcd4: 0xd646ae0f},
1392         "mpls_ip_bind_unbind": {0xc7533b32: 0x48249a27},
1393         "mpls_tunnel_add_del": {0x44350ac1: 0xe57ce61d},
1394         "mpls_tunnel_details": {0x57118ae3: 0xf3c0928e},
1395         "mpls_route_add_del": {0x8e1d1e07: 0x343cff54},
1396         "mpls_route_details": {0x9b5043dc: 0xd0ac384c},
1397         "policer_add_del": {0x2b31dd38: 0xcb948f6e},
1398         "policer_details": {0x72d0e248: 0xa43f781a},
1399         "qos_store_enable_disable": {0xf3abcc8b: 0x3507235e},
1400         "qos_store_details": {0x3ee0aad7: 0x38a6d48},
1401         "qos_record_enable_disable": {0x2f1a4a38: 0x25b33f88},
1402         "qos_record_details": {0xa425d4d3: 0x4956ccdd},
1403         "session_rule_add_del": {0xe4895422: 0xe31f9443},
1404         "session_rules_details": {0x28d71830: 0x304b91f0},
1405         "sw_interface_span_enable_disable": {0x23ddd96b: 0xacc8fea1},
1406         "sw_interface_span_details": {0x8a20e79f: 0x55643fc},
1407         "sr_mpls_steering_add_del": {0x64acff63: 0x7d1b0a0b},
1408         "sr_mpls_policy_assign_endpoint_color": {0xe7eb978: 0x5e1c5c13},
1409         "sr_localsid_add_del": {0x5a36c324: 0x26fa3309},
1410         "sr_policy_add": {0x44ac92e8: 0xec79ee6a},
1411         "sr_policy_mod": {0xb97bb56e: 0xe531a102},
1412         "sr_steering_add_del": {0xe46b0a0f: 0x3711dace},
1413         "sr_localsids_details": {0x2e9221b9: 0x6a6c0265},
1414         "sr_policies_details": {0xdb6ff2a1: 0x7ec2d93},
1415         "sr_steering_pol_details": {0xd41258c9: 0x1c1ee786},
1416         "syslog_set_sender": {0xb8011d0b: 0xbb641285},
1417         "syslog_get_sender_reply": {0x424cfa4e: 0xd3da60ac},
1418         "tcp_configure_src_addresses": {0x67eede0d: 0x4b02b946},
1419         "teib_entry_add_del": {0x8016cfd2: 0x5aa0a538},
1420         "teib_details": {0x981ee1a1: 0xe3b6a503},
1421         "udp_encap_add": {0xf74a60b1: 0x61d5fc48},
1422         "udp_encap_details": {0x8cfb9c76: 0x87c82821},
1423         "vxlan_gbp_tunnel_add_del": {0x6c743427: 0x8c819166},
1424         "vxlan_gbp_tunnel_details": {0x66e94a89: 0x1da24016},
1425         "vxlan_gpe_add_del_tunnel": {0xa645b2b0: 0x7c6da6ae},
1426         "vxlan_gpe_tunnel_details": {0x968fc8b: 0x57712346},
1427         "vxlan_add_del_tunnel": {0xc09dc80: 0xa35dc8f5},
1428         "vxlan_tunnel_details": {0xc3916cb1: 0xe782f70f},
1429         "vxlan_offload_rx": {0x9cc95087: 0x89a1564b},
1430         "log_details": {0x3d61cc0: 0x255827a1},
1431 }
1432
1433
1434 def foldup_crcs(s):
1435     for f in s:
1436         f.crc = foldup_blocks(f.block,
1437                               binascii.crc32(f.crc) & 0xffffffff)
1438
1439         # fixup the CRCs to make the fix seamless
1440         if f.name in fixup_crc_dict:
1441             if f.crc in fixup_crc_dict.get(f.name):
1442                 f.crc = fixup_crc_dict.get(f.name).get(f.crc)
1443
1444
1445 #
1446 # Main
1447 #
1448 def main():
1449     if sys.version_info < (3, 5,):
1450         log.exception('vppapigen requires a supported version of python. '
1451                       'Please use version 3.5 or greater. '
1452                       'Using %s', sys.version)
1453         return 1
1454
1455     cliparser = argparse.ArgumentParser(description='VPP API generator')
1456     cliparser.add_argument('--pluginpath', default="")
1457     cliparser.add_argument('--includedir', action='append')
1458     cliparser.add_argument('--outputdir', action='store')
1459     cliparser.add_argument('--input')
1460     cliparser.add_argument('--output', nargs='?',
1461                            type=argparse.FileType('w', encoding='UTF-8'),
1462                            default=sys.stdout)
1463
1464     cliparser.add_argument('output_module', nargs='?', default='C')
1465     cliparser.add_argument('--debug', action='store_true')
1466     cliparser.add_argument('--show-name', nargs=1)
1467     cliparser.add_argument('--git-revision',
1468                            help="Git revision to use for opening files")
1469     args = cliparser.parse_args()
1470
1471     dirlist_add(args.includedir)
1472     if not args.debug:
1473         sys.excepthook = exception_handler
1474
1475     # Filename
1476     if args.show_name:
1477         filename = args.show_name[0]
1478     elif args.input:
1479         filename = args.input
1480     else:
1481         filename = ''
1482
1483     if args.debug:
1484         logging.basicConfig(stream=sys.stdout, level=logging.WARNING)
1485     else:
1486         logging.basicConfig()
1487
1488     #
1489     # Generate representation
1490     #
1491     from importlib.machinery import SourceFileLoader
1492
1493     # Default path
1494     pluginpath = ''
1495     if not args.pluginpath:
1496         cand = []
1497         cand.append(os.path.dirname(os.path.realpath(__file__)))
1498         cand.append(os.path.dirname(os.path.realpath(__file__)) +
1499                     '/../share/vpp/')
1500         for c in cand:
1501             c += '/'
1502             if os.path.isfile('{}vppapigen_{}.py'
1503                               .format(c, args.output_module.lower())):
1504                 pluginpath = c
1505                 break
1506     else:
1507         pluginpath = args.pluginpath + '/'
1508     if pluginpath == '':
1509         log.exception('Output plugin not found')
1510         return 1
1511     module_path = '{}vppapigen_{}.py'.format(pluginpath,
1512                                              args.output_module.lower())
1513
1514     try:
1515         plugin = SourceFileLoader(args.output_module,
1516                                   module_path).load_module()
1517     except Exception as err:
1518         log.exception('Error importing output plugin: %s, %s',
1519                       module_path, err)
1520         return 1
1521
1522     parser = VPPAPI(debug=args.debug, filename=filename, logger=log,
1523                     revision=args.git_revision)
1524
1525     try:
1526         if not args.input:
1527             parsed_objects = parser.parse_fd(sys.stdin, log)
1528         else:
1529             parsed_objects = parser.parse_filename(args.input, log)
1530     except ParseError as e:
1531         print('Parse error: ', e, file=sys.stderr)
1532         sys.exit(1)
1533
1534     # Build a list of objects. Hash of lists.
1535     result = []
1536
1537     # if the variable is not set in the plugin, assume it to be false.
1538     try:
1539         plugin.process_imports
1540     except AttributeError:
1541         plugin.process_imports = False
1542
1543     if plugin.process_imports:
1544         result = parser.process_imports(parsed_objects, False, result)
1545         s = parser.process(result)
1546     else:
1547         s = parser.process(parsed_objects)
1548         imports = parser.process_imports(parsed_objects, False, result)
1549         s['imported'] = parser.process(imports)
1550
1551     # Add msg_id field
1552     s['Define'] = add_msg_id(s['Define'])
1553
1554     # Fold up CRCs
1555     foldup_crcs(s['Define'])
1556
1557     #
1558     # Debug
1559     if args.debug:
1560         import pprint
1561         pp = pprint.PrettyPrinter(indent=4, stream=sys.stderr)
1562         for t in s['Define']:
1563             pp.pprint([t.name, t.flags, t.block])
1564         for t in s['types']:
1565             pp.pprint([t.name, t.block])
1566
1567     result = plugin.run(args, filename, s)
1568     if result:
1569         print(result, file=args.output)
1570     else:
1571         log.exception('Running plugin failed: %s %s', filename, result)
1572         return 1
1573     return 0
1574
1575
1576 if __name__ == '__main__':
1577     sys.exit(main())