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wireshark/tools/wireshark_gen.py

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# -*- python -*-
#
# wireshark_gen.py (part of idl2wrs)
#
# Author : Frank Singleton (frank.singleton@ericsson.com)
#
# Copyright (C) 2001 Frank Singleton, Ericsson Inc.
#
# This file is a backend to "omniidl", used to generate "Wireshark"
# dissectors from CORBA IDL descriptions. The output language generated
# is "C". It will generate code to use the GIOP/IIOP get_CDR_XXX API.
#
# Please see packet-giop.h in Wireshark distro for API description.
# Wireshark is available at http://www.wireshark.org/
#
# Omniidl is part of the OmniOrb distribution, and is available at
# http://omniorb.sourceforge.net
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
#
# Description:
#
# Omniidl Back-end which parses an IDL list of "Operation" nodes
# passed from wireshark_be2.py and generates "C" code for compiling
# as a plugin for the Wireshark IP Protocol Analyser.
#
#
# Strategy (sneaky but ...)
#
# problem: I dont know what variables to declare until AFTER the helper functions
# have been built, so ...
#
# There are 2 passes through genHelpers, the first one is there just to
# make sure the fn_hash data struct is populated properly.
# The second pass is the real thing, generating code and declaring
# variables (from the 1st pass) properly.
#
"""Wireshark IDL compiler back-end."""
from omniidl import idlast, idltype, idlutil, output
import sys, string
import tempfile
#
# Output class, generates "C" src code for the sub-dissector
#
# in:
#
#
# self - me
# st - output stream
# node - a reference to an Operations object.
# name - scoped name (Module::Module::Interface:: .. ::Operation
#
#
# TODO -- FS
#
# 1. generate hf[] data for searchable fields (but what is searchable?) [done, could be improved]
# 2. add item instead of add_text() [done]
# 3. sequence handling [done]
# 4. User Exceptions [done]
# 5. Fix arrays, and structs containing arrays [done]
# 6. Handle pragmas.
# 7. Exception can be common to many operations, so handle them outside the
# operation helper functions [done]
# 8. Automatic variable declaration [done, improve, still get some collisions.add variable delegator function ]
# For example, mutlidimensional arrays.
# 9. wchar and wstring handling [giop API needs improving]
# 10. Support Fixed [done]
# 11. Support attributes (get/set) [started, needs language mapping option, perhaps wireshark GUI option
# to set the attribute function prefix or suffix ? ] For now the prefix is "_get" and "_set"
# eg: attribute string apple => _get_apple and _set_apple
#
# 12. Implement IDL "union" code [done]
# 13. Implement support for plugins [done]
# 14. Don't generate code for empty operations (cf: exceptions without members)
# 15. Generate code to display Enums numerically and symbolically [done]
# 16. Place structs/unions in subtrees
# 17. Recursive struct and union handling [done]
# 18. Improve variable naming for display (eg: structs, unions etc) [done]
#
# Also test, Test, TEST
#
#
# Strategy:
# For every operation and attribute do
# For return val and all parameters do
# find basic IDL type for each parameter
# output get_CDR_xxx
# output exception handling code
# output attribute handling code
#
#
class wireshark_gen_C:
#
# Turn DEBUG stuff on/off
#
DEBUG = 0
#
# Some string constants for our templates
#
c_u_octet8 = "guint64 u_octet8;"
c_s_octet8 = "gint64 s_octet8;"
c_u_octet4 = "guint32 u_octet4;"
c_s_octet4 = "gint32 s_octet4;"
c_u_octet2 = "guint16 u_octet2;"
c_s_octet2 = "gint16 s_octet2;"
c_u_octet1 = "guint8 u_octet1;"
c_s_octet1 = "gint8 s_octet1;"
c_float = "gfloat my_float;"
c_double = "gdouble my_double;"
c_seq = "const gchar *seq = NULL;" # pointer to buffer of gchars
c_i = "guint32 i_"; # loop index
c_i_lim = "guint32 u_octet4_loop_"; # loop limit
c_u_disc = "guint32 disc_u_"; # unsigned int union discriminant variable name (enum)
c_s_disc = "gint32 disc_s_"; # signed int union discriminant variable name (other cases, except Enum)
#
# Constructor
#
def __init__(self, st, protocol_name, dissector_name ,description):
self.st = output.Stream(tempfile.TemporaryFile(),4) # for first pass only
self.st_save = st # where 2nd pass should go
self.protoname = protocol_name # Protocol Name (eg: ECHO)
self.dissname = dissector_name # Dissector name (eg: echo)
self.description = description # Detailed Protocol description (eg: Echo IDL Example)
self.exlist = [] # list of exceptions used in operations.
#self.curr_sname # scoped name of current opnode or exnode I am visiting, used for generating "C" var declares
self.fn_hash = {} # top level hash to contain key = function/exception and val = list of variable declarations
# ie a hash of lists
self.fn_hash_built = 0 # flag to indicate the 1st pass is complete, and the fn_hash is correctly
# populated with operations/vars and exceptions/vars
#
# genCode()
#
# Main entry point, controls sequence of
# generated code.
#
#
def genCode(self,oplist, atlist, enlist, stlist, unlist): # operation,attribute,enums,struct and union lists
self.genHelpers(oplist,stlist,unlist) # sneaky .. call it now, to populate the fn_hash
# so when I come to that operation later, I have the variables to
# declare already.
self.genExceptionHelpers(oplist) # sneaky .. call it now, to populate the fn_hash
# so when I come to that exception later, I have the variables to
# declare already.
self.genAttributeHelpers(atlist) # sneaky .. call it now, to populate the fn_hash
# so when I come to that exception later, I have the variables to
# declare already.
self.fn_hash_built = 1 # DONE, so now I know , see genOperation()
self.st = self.st_save
self.genHeader() # initial dissector comments
self.genEthCopyright() # Wireshark Copyright comments.
self.genGPL() # GPL license
self.genIncludes()
self.genPrototype()
self.genProtocol()
self.genDeclares(oplist,atlist,enlist,stlist,unlist)
if (len(atlist) > 0):
self.genAtList(atlist) # string constant declares for Attributes
if (len(enlist) > 0):
self.genEnList(enlist) # string constant declares for Enums
self.genExceptionHelpers(oplist) # helper function to decode user exceptions that have members
self.genExceptionDelegator(oplist) # finds the helper function to decode a user exception
if (len(atlist) > 0):
self.genAttributeHelpers(atlist) # helper function to decode "attributes"
self.genHelpers(oplist,stlist,unlist) # operation, struct and union decode helper functions
self.genMainEntryStart(oplist)
self.genOpDelegator(oplist)
self.genAtDelegator(atlist)
self.genMainEntryEnd()
self.gen_proto_register(oplist, atlist, stlist, unlist)
self.gen_proto_reg_handoff(oplist)
# All the dissectors are now built-in
#self.gen_plugin_register()
#self.dumpvars() # debug
self.genModelines();
#
# genHeader
#
# Generate Standard Wireshark Header Comments
#
#
def genHeader(self):
self.st.out(self.template_Header,dissector_name=self.dissname)
if self.DEBUG:
print "XXX genHeader"
#
# genEthCopyright
#
# Wireshark Copyright Info
#
#
def genEthCopyright(self):
if self.DEBUG:
print "XXX genEthCopyright"
self.st.out(self.template_wireshark_copyright)
#
# genModelines
#
# Modelines info
#
#
def genModelines(self):
if self.DEBUG:
print "XXX genModelines"
self.st.out(self.template_Modelines)
#
# genGPL
#
# GPL license
#
#
def genGPL(self):
if self.DEBUG:
print "XXX genGPL"
self.st.out(self.template_GPL)
#
# genIncludes
#
# GPL license
#
#
def genIncludes(self):
if self.DEBUG:
print "XXX genIncludes"
self.st.out(self.template_Includes)
#
# genOpDeclares()
#
# Generate hf variables for operation filters
#
# in: opnode ( an operation node)
#
def genOpDeclares(self, op):
if self.DEBUG:
print "XXX genOpDeclares"
print "XXX return type = " , op.returnType().kind()
sname = self.namespace(op, "_")
rt = op.returnType()
if (rt.kind() != idltype.tk_void):
if (rt.kind() == idltype.tk_alias): # a typdef return val possibly ?
#self.get_CDR_alias(rt, rt.name() )
if (rt.unalias().kind() == idltype.tk_sequence):
self.st.out(self.template_hf, name=sname + "_return_loop")
if (self.isSeqNativeType(rt.unalias().seqType())):
self.st.out(self.template_hf, name=sname + "_return")
elif ((rt.unalias().kind() != idltype.tk_struct) and \
(rt.unalias().kind() != idltype.tk_objref) and \
(rt.unalias().kind() != idltype.tk_any)):
self.st.out(self.template_hf, name=sname + "_return")
elif ((rt.kind() != idltype.tk_struct) and \
(rt.kind() != idltype.tk_objref) and \
(rt.kind() != idltype.tk_union) and \
(rt.kind() != idltype.tk_any)):
self.st.out(self.template_hf, name=sname + "_return")
for p in op.parameters():
if (p.paramType().unalias().kind() == idltype.tk_sequence):
self.st.out(self.template_hf, name=sname + "_" + p.identifier() + "_loop")
if (self.isSeqNativeType(p.paramType().unalias().seqType())):
self.st.out(self.template_hf, name=sname + "_" + p.identifier())
elif ((p.paramType().unalias().kind() != idltype.tk_any) and \
(p.paramType().unalias().kind() != idltype.tk_struct) and \
(p.paramType().unalias().kind() != idltype.tk_objref) and \
(p.paramType().unalias().kind() != idltype.tk_union)):
if (p.paramType().unalias().kind() == idltype.tk_wchar):
self.st.out(self.template_hf, name=sname + "_" + p.identifier() + "_len")
self.st.out(self.template_hf, name=sname + "_" + p.identifier())
#
# genAtDeclares()
#
# Generate hf variables for attributes
#
# in: at ( an attribute)
#
def genAtDeclares(self, at):
if self.DEBUG:
print "XXX genAtDeclares"
for decl in at.declarators():
sname = self.namespace(decl, "_")
self.st.out(self.template_hf, name="get" + "_" + sname + "_" + decl.identifier())
if not at.readonly():
self.st.out(self.template_hf, name="set" + "_" + sname + "_" + decl.identifier())
#
# genStDeclares()
#
# Generate hf variables for structs
#
# in: st ( a struct)
#
def genStDeclares(self, st):
if self.DEBUG:
print "XXX genStDeclares"
sname = self.namespace(st, "_")
for m in st.members():
if ((self.isSeqNativeType(m.memberType())) or (m.memberType().unalias().kind() == idltype.tk_sequence) or \
(m.memberType().unalias().kind() == idltype.tk_alias)):
for decl in m.declarators():
if (m.memberType().unalias().kind() == idltype.tk_sequence):
self.st.out(self.template_hf, name=sname + "_" + decl.identifier() + "_loop")
if (self.isSeqNativeType(m.memberType().unalias().seqType())):
self.st.out(self.template_hf, name=sname + "_" + decl.identifier())
else:
if (m.memberType().unalias().kind() == idltype.tk_wchar):
self.st.out(self.template_hf, name=sname + "_" + decl.identifier() + "_len")
self.st.out(self.template_hf, name=sname + "_" + decl.identifier())
#
# genExDeclares()
#
# Generate hf variables for user exception filters
#
# in: exnode ( an exception node)
#
def genExDeclares(self,ex):
if self.DEBUG:
print "XXX genExDeclares"
sname = self.namespace(ex, "_")
for m in ex.members():
for decl in m.declarators():
if (m.memberType().unalias().kind() == idltype.tk_sequence):
if (self.isSeqNativeType(m.memberType().unalias().seqType())):
self.st.out(self.template_hf, name=sname + "_" + decl.identifier())
self.st.out(self.template_hf, name=sname + "_" + decl.identifier() + "_loop")
elif (m.memberType().unalias().kind() != idltype.tk_struct):
self.st.out(self.template_hf, name=sname + "_" + decl.identifier())
#
# genUnionDeclares()
#
# Generate hf variables for union filters
#
# in: un ( an union)
#
def genUnionDeclares(self,un):
if self.DEBUG:
print "XXX genUnionDeclares"
sname = self.namespace(un, "_")
self.st.out(self.template_hf, name=sname + "_" + un.identifier())
for uc in un.cases(): # for all UnionCase objects in this union
for cl in uc.labels(): # for all Caselabel objects in this UnionCase
if (uc.caseType().unalias().kind() == idltype.tk_sequence):
self.st.out(self.template_hf, name=sname + "_" + uc.declarator().identifier() + "_loop")
if (self.isSeqNativeType(uc.caseType().unalias().seqType())):
self.st.out(self.template_hf, name=sname + "_" + uc.declarator().identifier())
elif (self.isSeqNativeType(uc.caseType())):
if (uc.caseType().unalias().kind() == idltype.tk_wchar):
self.st.out(self.template_hf, name=sname + "_" + uc.declarator().identifier() + "_len")
self.st.out(self.template_hf, name=sname + "_" + uc.declarator().identifier())
#
# genExpertInfoDeclares()
#
# Generate ei variables for expert info filters
#
def genExpertInfoDeclares(self):
if self.DEBUG:
print "XXX genExpertInfoDeclares"
self.st.out(self.template_proto_register_ei_filters, dissector_name=self.dissname)
#
# genDeclares
#
# generate function prototypes if required
#
# Currently this is used for struct and union helper function declarations.
#
def genDeclares(self,oplist,atlist,enlist,stlist,unlist):
if self.DEBUG:
print "XXX genDeclares"
# prototype for operation filters
self.st.out(self.template_hf_operations)
#operation specific filters
if (len(oplist) > 0):
self.st.out(self.template_proto_register_op_filter_comment)
for op in oplist:
self.genOpDeclares(op)
#attribute filters
if (len(atlist) > 0):
self.st.out(self.template_proto_register_at_filter_comment)
for at in atlist:
self.genAtDeclares(at)
#struct filters
if (len(stlist) > 0):
self.st.out(self.template_proto_register_st_filter_comment)
for st in stlist:
self.genStDeclares(st)
# exception List filters
exlist = self.get_exceptionList(oplist) # grab list of exception nodes
if (len(exlist) > 0):
self.st.out(self.template_proto_register_ex_filter_comment)
for ex in exlist:
if (ex.members()): # only if has members
self.genExDeclares(ex)
#union filters
if (len(unlist) > 0):
self.st.out(self.template_proto_register_un_filter_comment)
for un in unlist:
self.genUnionDeclares(un)
#expert info filters
self.genExpertInfoDeclares()
# prototype for start_dissecting()
self.st.out(self.template_prototype_start_dissecting)
# struct prototypes
if len(stlist):
self.st.out(self.template_prototype_struct_start)
for st in stlist:
#print st.repoId()
sname = self.namespace(st, "_")
self.st.out(self.template_prototype_struct_body, stname=st.repoId(),name=sname)
self.st.out(self.template_prototype_struct_end)
# union prototypes
if len(unlist):
self.st.out(self.template_prototype_union_start)
for un in unlist:
sname = self.namespace(un, "_")
self.st.out(self.template_prototype_union_body, unname=un.repoId(),name=sname)
self.st.out(self.template_prototype_union_end)
#
# genPrototype
#
#
def genPrototype(self):
self.st.out(self.template_prototype, dissector_name=self.dissname)
#
# genProtocol
#
#
def genProtocol(self):
self.st.out(self.template_protocol, dissector_name=self.dissname)
self.st.out(self.template_init_boundary)
#
# genMainEntryStart
#
def genMainEntryStart(self,oplist):
self.st.out(self.template_main_dissector_start, dissname=self.dissname, disprot=self.protoname)
self.st.inc_indent()
self.st.out(self.template_main_dissector_switch_msgtype_start)
self.st.out(self.template_main_dissector_switch_msgtype_start_request_reply)
self.st.inc_indent()
#
# genMainEntryEnd
#
def genMainEntryEnd(self):
self.st.out(self.template_main_dissector_switch_msgtype_end_request_reply)
self.st.dec_indent()
self.st.out(self.template_main_dissector_switch_msgtype_all_other_msgtype)
self.st.dec_indent()
self.st.out(self.template_main_dissector_end)
#
# genAtList
#
# in: atlist
#
# out: C code for IDL attribute decalarations.
#
# NOTE: Mapping of attributes to operation(function) names is tricky.
#
# The actual accessor function names are language-mapping specific. The attribute name
# is subject to OMG IDL's name scoping rules; the accessor function names are
# guaranteed not to collide with any legal operation names specifiable in OMG IDL.
#
# eg:
#
# static const char get_Penguin_Echo_get_width_at[] = "get_width" ;
# static const char set_Penguin_Echo_set_width_at[] = "set_width" ;
#
# or:
#
# static const char get_Penguin_Echo_get_width_at[] = "_get_width" ;
# static const char set_Penguin_Echo_set_width_at[] = "_set_width" ;
#
# TODO: Implement some language dependent templates to handle naming conventions
# language <=> attribute. for C, C++. Java etc
#
# OR, just add a runtime GUI option to select language binding for attributes -- FS
#
#
#
# ie: def genAtlist(self,atlist,language)
#
def genAtList(self,atlist):
self.st.out(self.template_comment_attributes_start)
for n in atlist:
for i in n.declarators(): #
sname = self.namespace(i, "_")
atname = i.identifier()
self.st.out(self.template_attributes_declare_Java_get, sname=sname, atname=atname)
if not n.readonly():
self.st.out(self.template_attributes_declare_Java_set, sname=sname, atname=atname)
self.st.out(self.template_comment_attributes_end)
#
# genEnList
#
# in: enlist
#
# out: C code for IDL Enum decalarations using "static const value_string" template
#
def genEnList(self,enlist):
self.st.out(self.template_comment_enums_start)
for enum in enlist:
sname = self.namespace(enum, "_")
self.st.out(self.template_comment_enum_comment, ename=enum.repoId())
self.st.out(self.template_value_string_start, valstringname=sname)
for enumerator in enum.enumerators():
self.st.out(self.template_value_string_entry, intval=str(self.valFromEnum(enum,enumerator)), description=enumerator.identifier())
#atname = n.identifier()
self.st.out(self.template_value_string_end, valstringname=sname)
self.st.out(self.template_comment_enums_end)
#
# genExceptionDelegator
#
# in: oplist
#
# out: C code for User exception delegator
#
# eg:
#
#
def genExceptionDelegator(self,oplist):
self.st.out(self.template_main_exception_delegator_start)
self.st.inc_indent()
exlist = self.get_exceptionList(oplist) # grab list of ALL UNIQUE exception nodes
for ex in exlist:
if self.DEBUG:
print "XXX Exception " , ex.repoId()
print "XXX Exception Identifier" , ex.identifier()
print "XXX Exception Scoped Name" , ex.scopedName()
if (ex.members()): # only if has members
sname = self.namespace(ex, "_")
exname = ex.repoId()
self.st.out(self.template_ex_delegate_code, sname=sname, exname=ex.repoId())
self.st.dec_indent()
self.st.out(self.template_main_exception_delegator_end)
#
# genAttribueHelpers()
#
# Generate private helper functions to decode Attributes.
#
# in: atlist
#
# For readonly attribute - generate get_xxx()
# If NOT readonly attribute - also generate set_xxx()
#
def genAttributeHelpers(self,atlist):
if self.DEBUG:
print "XXX genAttributeHelpers: atlist = ", atlist
self.st.out(self.template_attribute_helpers_start)
for attrib in atlist:
for decl in attrib.declarators():
self.genAtHelper(attrib,decl,"get") # get accessor
if not attrib.readonly():
self.genAtHelper(attrib,decl,"set") # set accessor
self.st.out(self.template_attribute_helpers_end)
#
# genAtHelper()
#
# Generate private helper functions to decode an attribute
#
# in: at - attribute node
# in: decl - declarator belonging to this attribute
# in: order - to generate a "get" or "set" helper
def genAtHelper(self,attrib,decl,order):
if self.DEBUG:
print "XXX genAtHelper"
sname = order + "_" + self.namespace(decl, "_") # must use set or get prefix to avoid collision
self.curr_sname = sname # update current opnode/exnode scoped name
if not self.fn_hash_built:
self.fn_hash[sname] = [] # init empty list as val for this sname key
# but only if the fn_hash is not already built
self.st.out(self.template_attribute_helper_function_start, sname=sname, atname=decl.repoId())
self.st.inc_indent()
if (len(self.fn_hash[sname]) > 0):
self.st.out(self.template_helper_function_vars_start)
self.dumpCvars(sname)
self.st.out(self.template_helper_function_vars_end_item )
self.getCDR(attrib.attrType(), sname + "_" + decl.identifier() )
self.st.dec_indent()
self.st.out(self.template_attribute_helper_function_end)
#
# genExceptionHelpers()
#
# Generate private helper functions to decode Exceptions used
# within operations
#
# in: oplist
#
def genExceptionHelpers(self,oplist):
exlist = self.get_exceptionList(oplist) # grab list of exception nodes
if self.DEBUG:
print "XXX genExceptionHelpers: exlist = ", exlist
self.st.out(self.template_exception_helpers_start)
for ex in exlist:
if (ex.members()): # only if has members
#print "XXX Exception = " + ex.identifier()
self.genExHelper(ex)
self.st.out(self.template_exception_helpers_end)
#
# genExhelper()
#
# Generate private helper functions to decode User Exceptions
#
# in: exnode ( an exception node)
#
def genExHelper(self,ex):
if self.DEBUG:
print "XXX genExHelper"
# check to see if we need an item
need_item = 0
for m in ex.members():
if (self.isItemVarType(m.memberType())):
need_item = 1
break
sname = self.namespace(ex, "_")
self.curr_sname = sname # update current opnode/exnode scoped name
if not self.fn_hash_built:
self.fn_hash[sname] = [] # init empty list as val for this sname key
# but only if the fn_hash is not already built
if (need_item):
self.st.out(self.template_exception_helper_function_start_item, sname=sname, exname=ex.repoId())
else:
self.st.out(self.template_exception_helper_function_start_no_item, sname=sname, exname=ex.repoId())
self.st.inc_indent()
if (len(self.fn_hash[sname]) > 0):
self.st.out(self.template_helper_function_vars_start)
self.dumpCvars(sname)
if (need_item):
self.st.out(self.template_helper_function_vars_end_item )
else:
self.st.out(self.template_helper_function_vars_end )
for m in ex.members():
if self.DEBUG:
print "XXX genExhelper, member = ", m, "member type = ", m.memberType()
for decl in m.declarators():
if self.DEBUG:
print "XXX genExhelper, d = ", decl
if decl.sizes(): # an array
indices = self.get_indices_from_sizes(decl.sizes())
string_indices = '%i ' % indices # convert int to string
self.st.out(self.template_get_CDR_array_comment, aname=decl.identifier(), asize=string_indices)
self.st.out(self.template_get_CDR_array_start, aname=decl.identifier(), aval=string_indices)
self.addvar(self.c_i + decl.identifier() + ";")
self.st.inc_indent()
self.getCDR(m.memberType(), sname + "_" + decl.identifier() )
self.st.dec_indent()
self.st.out(self.template_get_CDR_array_end)
else:
self.getCDR(m.memberType(), sname + "_" + decl.identifier() )
self.st.dec_indent()
self.st.out(self.template_exception_helper_function_end)
#
# genHelpers()
#
# Generate private helper functions for each IDL operation.
# Generate private helper functions for each IDL struct.
# Generate private helper functions for each IDL union.
#
#
# in: oplist, stlist, unlist
#
def genHelpers(self,oplist,stlist,unlist):
for op in oplist:
self.genOperation(op)
for st in stlist:
self.genStructHelper(st)
for un in unlist:
self.genUnionHelper(un)
#
# genOperation()
#
# Generate private helper functions for a specificIDL operation.
#
# in: opnode
#
def genOperation(self,opnode):
if self.DEBUG:
print "XXX genOperation called"
sname = self.namespace(opnode, "_")
if not self.fn_hash_built:
self.fn_hash[sname] = [] # init empty list as val for this sname key
# but only if the fn_hash is not already built
self.curr_sname = sname # update current opnode's scoped name
opname = opnode.identifier()
self.st.out(self.template_helper_function_comment, repoid=opnode.repoId() )
self.st.out(self.template_helper_function_start, sname=sname)
self.st.inc_indent()
if (len(self.fn_hash[sname]) > 0):
self.st.out(self.template_helper_function_vars_start)
self.dumpCvars(sname)
self.st.out(self.template_helper_function_vars_end_item )
self.st.out(self.template_helper_switch_msgtype_start)
self.st.out(self.template_helper_switch_msgtype_request_start)
self.st.inc_indent()
self.genOperationRequest(opnode)
self.st.out(self.template_helper_switch_msgtype_request_end)
self.st.dec_indent()
self.st.out(self.template_helper_switch_msgtype_reply_start)
self.st.inc_indent()
self.st.out(self.template_helper_switch_rep_status_start)
self.st.out(self.template_helper_switch_msgtype_reply_no_exception_start)
self.st.inc_indent()
self.genOperationReply(opnode)
self.st.out(self.template_helper_switch_msgtype_reply_no_exception_end)
self.st.dec_indent()
self.st.out(self.template_helper_switch_msgtype_reply_user_exception_start)
self.st.inc_indent()
self.genOpExceptions(opnode)
self.st.out(self.template_helper_switch_msgtype_reply_user_exception_end)
self.st.dec_indent()
self.st.out(self.template_helper_switch_msgtype_reply_default_start, dissector_name=self.dissname)
self.st.out(self.template_helper_switch_msgtype_reply_default_end)
self.st.out(self.template_helper_switch_rep_status_end)
self.st.dec_indent()
self.st.out(self.template_helper_switch_msgtype_default_start, dissector_name=self.dissname)
self.st.out(self.template_helper_switch_msgtype_default_end)
self.st.out(self.template_helper_switch_msgtype_end)
self.st.dec_indent()
self.st.out(self.template_helper_function_end, sname=sname)
#
# Decode function parameters for a GIOP request message
#
#
def genOperationRequest(self,opnode):
for p in opnode.parameters():
if p.is_in():
if self.DEBUG:
print "XXX parameter = " ,p
print "XXX parameter type = " ,p.paramType()
print "XXX parameter type kind = " ,p.paramType().kind()
self.getCDR(p.paramType(), self.curr_sname + "_" + p.identifier())
#
# Decode function parameters for a GIOP reply message
#
def genOperationReply(self,opnode):
rt = opnode.returnType() # get return type
if self.DEBUG:
print "XXX genOperationReply"
print "XXX opnode = " , opnode
print "XXX return type = " , rt
print "XXX return type.unalias = " , rt.unalias()
print "XXX return type.kind() = " , rt.kind();
sname = self.namespace(opnode, "_")
if (rt.kind() == idltype.tk_alias): # a typdef return val possibly ?
#self.getCDR(rt.decl().alias().aliasType(),"dummy") # return value maybe a typedef
self.get_CDR_alias(rt, sname + "_return" )
#self.get_CDR_alias(rt, rt.name() )
else:
self.getCDR(rt, sname + "_return") # return value is NOT an alias
for p in opnode.parameters():
if p.is_out(): # out or inout
self.getCDR(p.paramType(), self.curr_sname + "_" + p.identifier())
#self.st.dec_indent()
def genOpExceptions(self,opnode):
for ex in opnode.raises():
if ex.members():
#print ex.members()
for m in ex.members():
t=0
#print m.memberType(), m.memberType().kind()
#
# Delegator for Operations
#
def genOpDelegator(self,oplist):
for op in oplist:
iname = "/".join(op.scopedName()[:-1])
opname = op.identifier()
sname = self.namespace(op, "_")
self.st.out(self.template_op_delegate_code, interface=iname, sname=sname, opname=opname)
#
# Delegator for Attributes
#
def genAtDelegator(self,atlist):
for a in atlist:
for i in a.declarators():
atname = i.identifier()
sname = self.namespace(i, "_")
self.st.out(self.template_at_delegate_code_get, sname=sname)
if not a.readonly():
self.st.out(self.template_at_delegate_code_set, sname=sname)
#
# Add a variable declaration to the hash of list
#
def addvar(self, var):
if not ( var in self.fn_hash[self.curr_sname] ):
self.fn_hash[self.curr_sname].append(var)
#
# Print the variable declaration from the hash of list
#
def dumpvars(self):
for fn in self.fn_hash.keys():
print "FN = " + fn
for v in self.fn_hash[fn]:
print "-> " + v
#
# Print the "C" variable declaration from the hash of list
# for a given scoped operation name (eg: tux_penguin_eat)
#
def dumpCvars(self, sname):
for v in self.fn_hash[sname]:
self.st.out(v)
#
# Given an enum node, and a enumerator node, return
# the enumerator's numerical value.
#
# eg: enum Color {red,green,blue} should return
# val = 1 for green
#
def valFromEnum(self,enumNode, enumeratorNode):
if self.DEBUG:
print "XXX valFromEnum, enumNode = ", enumNode, " from ", enumNode.repoId()
print "XXX valFromEnum, enumeratorNode = ", enumeratorNode, " from ", enumeratorNode.repoId()
if isinstance(enumeratorNode,idlast.Enumerator):
value = enumNode.enumerators().index(enumeratorNode)
return value
## tk_null = 0
## tk_void = 1
## tk_short = 2
## tk_long = 3
## tk_ushort = 4
## tk_ulong = 5
## tk_float = 6
## tk_double = 7
## tk_boolean = 8
## tk_char = 9
## tk_octet = 10
## tk_any = 11
## tk_TypeCode = 12
## tk_Principal = 13
## tk_objref = 14
## tk_struct = 15
## tk_union = 16
## tk_enum = 17
## tk_string = 18
## tk_sequence = 19
## tk_array = 20
## tk_alias = 21
## tk_except = 22
## tk_longlong = 23
## tk_ulonglong = 24
## tk_longdouble = 25
## tk_wchar = 26
## tk_wstring = 27
## tk_fixed = 28
## tk_value = 29
## tk_value_box = 30
## tk_native = 31
## tk_abstract_interface = 32
#
# isSeqNativeType()
#
# Return true for "native" datatypes that will generate a direct proto_tree_add_xxx
# call for a sequence. Used to determine if a separate hf variable is needed for
# the loop over the sequence
def isSeqNativeType(self,type):
pt = type.unalias().kind() # param CDR type
if self.DEBUG:
print "XXX isSeqNativeType: kind = " , pt
if pt == idltype.tk_ulong:
return 1
elif pt == idltype.tk_longlong:
return 1
elif pt == idltype.tk_ulonglong:
return 1
elif pt == idltype.tk_short:
return 1
elif pt == idltype.tk_long:
return 1
elif pt == idltype.tk_ushort:
return 1
elif pt == idltype.tk_float:
return 1
elif pt == idltype.tk_double:
return 1
elif pt == idltype.tk_boolean:
return 1
elif pt == idltype.tk_octet:
return 1
elif pt == idltype.tk_enum:
return 1
elif pt == idltype.tk_string:
return 1
elif pt == idltype.tk_wstring:
return 1
elif pt == idltype.tk_wchar:
return 1
elif pt == idltype.tk_char:
return 1
else:
return 0
def isItemVarType(self,type):
pt = type.unalias().kind() # param CDR type
if self.DEBUG:
print "XXX isItemVarType: kind = " , pt
if pt == idltype.tk_fixed:
return 1
elif pt == idltype.tk_any:
return 1
elif pt == idltype.tk_struct:
return 1
elif pt == idltype.tk_sequence:
return 1
else:
return 0
#
# getCDR()
#
# This is the main "iterator" function. It takes a node, and tries to output
# a get_CDR_XXX accessor method(s). It can call itself multiple times
# if I find nested structures etc.
#
def getCDR(self,type,name="fred"):
pt = type.unalias().kind() # param CDR type
pn = name # param name
if self.DEBUG:
print "XXX getCDR: kind = " , pt
print "XXX getCDR: name = " , pn
if pt == idltype.tk_ulong:
self.get_CDR_ulong(pn)
elif pt == idltype.tk_longlong:
self.get_CDR_longlong(pn)
elif pt == idltype.tk_ulonglong:
self.get_CDR_ulonglong(pn)
elif pt == idltype.tk_void:
self.get_CDR_void(pn)
elif pt == idltype.tk_short:
self.get_CDR_short(pn)
elif pt == idltype.tk_long:
self.get_CDR_long(pn)
elif pt == idltype.tk_ushort:
self.get_CDR_ushort(pn)
elif pt == idltype.tk_float:
self.get_CDR_float(pn)
elif pt == idltype.tk_double:
self.get_CDR_double(pn)
elif pt == idltype.tk_fixed:
self.get_CDR_fixed(type.unalias(),pn)
elif pt == idltype.tk_boolean:
self.get_CDR_boolean(pn)
elif pt == idltype.tk_char:
self.get_CDR_char(pn)
elif pt == idltype.tk_octet:
self.get_CDR_octet(pn)
elif pt == idltype.tk_any:
self.get_CDR_any(pn)
elif pt == idltype.tk_string:
self.get_CDR_string(pn)
elif pt == idltype.tk_wstring:
self.get_CDR_wstring(pn)
elif pt == idltype.tk_wchar:
self.get_CDR_wchar(pn)
elif pt == idltype.tk_enum:
#print type.decl()
self.get_CDR_enum(pn,type)
#self.get_CDR_enum(pn)
elif pt == idltype.tk_struct:
self.get_CDR_struct(type,pn)
elif pt == idltype.tk_TypeCode: # will I ever get here ?
self.get_CDR_TypeCode(pn)
elif pt == idltype.tk_sequence:
if type.unalias().seqType().kind() == idltype.tk_octet:
self.get_CDR_sequence_octet(type,pn)
else:
self.get_CDR_sequence(type,pn)
elif pt == idltype.tk_objref:
self.get_CDR_objref(type,pn)
elif pt == idltype.tk_array:
pn = pn # Supported elsewhere
elif pt == idltype.tk_union:
self.get_CDR_union(type,pn)
elif pt == idltype.tk_alias:
if self.DEBUG:
print "XXXXX Alias type XXXXX " , type
self.get_CDR_alias(type,pn)
else:
self.genWARNING("Unknown typecode = " + '%i ' % pt) # put comment in source code
#
# get_CDR_XXX methods are here ..
#
#
def get_CDR_ulong(self,pn):
self.st.out(self.template_get_CDR_ulong, hfname=pn)
def get_CDR_short(self,pn):
self.st.out(self.template_get_CDR_short, hfname=pn)
def get_CDR_void(self,pn):
self.st.out(self.template_get_CDR_void, hfname=pn)
def get_CDR_long(self,pn):
self.st.out(self.template_get_CDR_long, hfname=pn)
def get_CDR_ushort(self,pn):
self.st.out(self.template_get_CDR_ushort, hfname=pn)
def get_CDR_float(self,pn):
self.st.out(self.template_get_CDR_float, hfname=pn)
def get_CDR_double(self,pn):
self.st.out(self.template_get_CDR_double, hfname=pn)
def get_CDR_longlong(self,pn):
self.st.out(self.template_get_CDR_longlong, hfname=pn)
def get_CDR_ulonglong(self,pn):
self.st.out(self.template_get_CDR_ulonglong, hfname=pn)
def get_CDR_boolean(self,pn):
self.st.out(self.template_get_CDR_boolean, hfname=pn)
def get_CDR_fixed(self,type,pn):
if self.DEBUG:
print "XXXX calling get_CDR_fixed, type = ", type
print "XXXX calling get_CDR_fixed, type.digits() = ", type.digits()
print "XXXX calling get_CDR_fixed, type.scale() = ", type.scale()
string_digits = '%i ' % type.digits() # convert int to string
string_scale = '%i ' % type.scale() # convert int to string
string_length = '%i ' % self.dig_to_len(type.digits()) # how many octets to hilight for a number of digits
self.st.out(self.template_get_CDR_fixed, hfname=pn, digits=string_digits, scale=string_scale, length=string_length )
self.addvar(self.c_seq)
def get_CDR_char(self,pn):
self.st.out(self.template_get_CDR_char, hfname=pn)
def get_CDR_octet(self,pn):
self.st.out(self.template_get_CDR_octet, hfname=pn)
def get_CDR_any(self,pn):
self.st.out(self.template_get_CDR_any, varname=pn)
def get_CDR_enum(self,pn,type):
#self.st.out(self.template_get_CDR_enum, hfname=pn)
sname = self.namespace(type.unalias(), "_")
self.st.out(self.template_get_CDR_enum_symbolic, valstringarray=sname,hfname=pn)
self.addvar(self.c_u_octet4)
def get_CDR_string(self,pn):
self.st.out(self.template_get_CDR_string, hfname=pn)
def get_CDR_wstring(self,pn):
self.st.out(self.template_get_CDR_wstring, hfname=pn)
self.addvar(self.c_u_octet4)
self.addvar(self.c_seq)
def get_CDR_wchar(self,pn):
self.st.out(self.template_get_CDR_wchar, hfname=pn)
self.addvar(self.c_s_octet1)
self.addvar(self.c_seq)
def get_CDR_TypeCode(self,pn):
self.st.out(self.template_get_CDR_TypeCode, varname=pn)
self.addvar(self.c_u_octet4)
def get_CDR_objref(self,type,pn):
self.st.out(self.template_get_CDR_object)
def get_CDR_union(self,type,pn):
if self.DEBUG:
print "XXX Union type =" , type, " pn = ",pn
print "XXX Union type.decl()" , type.decl()
print "XXX Union Scoped Name" , type.scopedName()
# If I am a typedef union {..}; node then find the union node
if isinstance(type.decl(), idlast.Declarator):
ntype = type.decl().alias().aliasType().decl()
else:
ntype = type.decl() # I am a union node
if self.DEBUG:
print "XXX Union ntype =" , ntype
sname = self.namespace(ntype, "_")
self.st.out(self.template_union_start, name=sname )
# Output a call to the union helper function so I can handle recursive union also.
self.st.out(self.template_decode_union,name=sname)
self.st.out(self.template_union_end, name=sname )
#
# getCDR_hf()
#
# This takes a node, and tries to output the appropriate item for the
# hf array.
#
def getCDR_hf(self,type,desc,filter,hf_name="fred"):
pt = type.unalias().kind() # param CDR type
pn = hf_name # param name
if self.DEBUG:
print "XXX getCDR_hf: kind = " , pt
print "XXX getCDR_hf: name = " , pn
if pt == idltype.tk_ulong:
self.get_CDR_ulong_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_longlong:
self.get_CDR_longlong_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_ulonglong:
self.get_CDR_ulonglong_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_void:
pt = pt # no hf_ variables needed
elif pt == idltype.tk_short:
self.get_CDR_short_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_long:
self.get_CDR_long_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_ushort:
self.get_CDR_ushort_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_float:
self.get_CDR_float_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_double:
self.get_CDR_double_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_fixed:
self.get_CDR_fixed_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_boolean:
self.get_CDR_boolean_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_char:
self.get_CDR_char_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_octet:
self.get_CDR_octet_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_any:
pt = pt # no hf_ variables needed
elif pt == idltype.tk_string:
self.get_CDR_string_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_wstring:
self.get_CDR_wstring_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_wchar:
self.get_CDR_wchar_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_enum:
self.get_CDR_enum_hf(pn, type, desc, filter, self.dissname)
elif pt == idltype.tk_struct:
pt = pt # no hf_ variables needed (should be already contained in struct members)
elif pt == idltype.tk_TypeCode: # will I ever get here ?
self.get_CDR_TypeCode_hf(pn, desc, filter, self.dissname)
elif pt == idltype.tk_sequence:
if type.unalias().seqType().kind() == idltype.tk_octet:
self.get_CDR_sequence_octet_hf(type, pn, desc, filter, self.dissname)
else:
self.get_CDR_sequence_hf(type, pn, desc, filter, self.dissname)
elif pt == idltype.tk_objref:
pt = pt # no object specific hf_ variables used, use generic ones from giop dissector
elif pt == idltype.tk_array:
pt = pt # Supported elsewhere
elif pt == idltype.tk_union:
pt = pt # no hf_ variables needed (should be already contained in union members)
elif pt == idltype.tk_alias:
if self.DEBUG:
print "XXXXX Alias type hf XXXXX " , type
self.get_CDR_alias_hf(type,desc,filter,pn)
else:
self.genWARNING("Unknown typecode = " + '%i ' % pt) # put comment in source code
#
# get_CDR_XXX_hf methods are here ..
#
#
def get_CDR_ulong_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_ulong_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_short_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_short_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_long_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_long_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_ushort_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_ushort_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_float_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_float_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_double_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_double_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_fixed_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_fixed_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_longlong_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_longlong_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_ulonglong_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_ulonglong_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_boolean_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_boolean_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_char_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_char_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_octet_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_octet_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_enum_hf(self,pn,type,desc,filter,diss):
sname = self.namespace(type.unalias(), "_")
self.st.out(self.template_get_CDR_enum_symbolic_hf, valstringarray=sname,hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_string_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_string_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_wstring_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_wstring_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
# self.addvar(self.c_u_octet4)
# self.addvar(self.c_seq)
def get_CDR_wchar_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_wchar_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
# self.addvar(self.c_s_octet1)
# self.addvar(self.c_seq)
def get_CDR_TypeCode_hf(self,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_TypeCode_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_sequence_octet_hf(self,type,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_sequence_octet_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
def get_CDR_sequence_hf(self,type,pn,desc,filter,diss):
self.st.out(self.template_get_CDR_sequence_hf, hfname=pn, dissector_name=diss, descname=desc, filtername=filter)
if (self.isSeqNativeType(type.unalias().seqType())):
self.getCDR_hf(type.unalias().seqType(),desc,filter,pn)
def get_CDR_alias_hf(self,type,desc,filter,pn):
if self.DEBUG:
print "XXX get_CDR_alias_hf, type = " ,type , " pn = " , pn
print "XXX get_CDR_alias_hf, type.decl() = " ,type.decl()
print "XXX get_CDR_alias_hf, type.decl().alias() = " ,type.decl().alias()
decl = type.decl() # get declarator object
if (decl.sizes()): # a typedef array
#indices = self.get_indices_from_sizes(decl.sizes())
#string_indices = '%i ' % indices # convert int to string
#self.st.out(self.template_get_CDR_array_comment, aname=pn, asize=string_indices)
#self.st.out(self.template_get_CDR_array_start, aname=pn, aval=string_indices)
#self.addvar(self.c_i + pn + ";")
#self.st.inc_indent()
self.getCDR_hf(type.decl().alias().aliasType(), desc, filter, pn )
#self.st.dec_indent()
#self.st.out(self.template_get_CDR_array_end)
else: # a simple typdef
if self.DEBUG:
print "XXX get_CDR_alias_hf, type = " ,type , " pn = " , pn
print "XXX get_CDR_alias_hf, type.decl() = " ,type.decl()
self.getCDR_hf(type, desc, filter, decl.identifier() )
#
# Code to generate Union Helper functions
#
# in: un - a union node
#
#
def genUnionHelper(self,un):
if self.DEBUG:
print "XXX genUnionHelper called"
print "XXX Union type =" , un
print "XXX Union type.switchType()" , un.switchType()
print "XXX Union Scoped Name" , un.scopedName()
# check to see if we need an item
un_need_item = 0
if (un.switchType().unalias().kind() == idltype.tk_enum):
for uc in un.cases(): # for all UnionCase objects in this union
if ( self.isItemVarType(uc.caseType())):
if (uc.caseType().unalias().kind() == idltype.tk_sequence):
if (uc.caseType().unalias().seqType().kind() == idltype.tk_struct):
un_need_item = 1
else:
un_need_item = 1
sname = self.namespace(un, "_")
self.curr_sname = sname # update current opnode/exnode/stnode/unnode scoped name
if not self.fn_hash_built:
self.fn_hash[sname] = [] # init empty list as val for this sname key
# but only if the fn_hash is not already built
if (un_need_item):
self.st.out(self.template_union_helper_function_start_with_item, sname=sname, unname=un.repoId())
else:
self.st.out(self.template_union_helper_function_start, sname=sname, unname=un.repoId())
self.st.inc_indent()
if (len(self.fn_hash[sname]) > 0):
self.st.out(self.template_helper_function_vars_start)
self.dumpCvars(sname)
self.st.out(self.template_helper_function_vars_end_item )
st = un.switchType().unalias() # may be typedef switch type, so find real type
self.st.out(self.template_comment_union_code_start, uname=un.repoId() )
self.getCDR(st, sname + "_" + un.identifier());
# Depending on what kind of discriminant I come accross (enum,integer,char,
# short, boolean), make sure I cast the return value of the get_XXX accessor
# to an appropriate value. Omniidl idlast.CaseLabel.value() accessor will
# return an integer, or an Enumerator object that is then converted to its
# integer equivalent.
#
#
# NOTE - May be able to skip some of this stuff, but leave it in for now -- FS
#
if (st.kind() == idltype.tk_enum):
std = st.decl()
self.st.out(self.template_comment_union_code_discriminant, uname=std.repoId() )
#count the number of cases to ensure variable is needed
num = 0
num_defaults = 0
for uc in un.cases(): # for all UnionCase objects in this union
num += len(uc.labels())
for cl in uc.labels():
if cl.default():
num_defaults += 1
if ((num != 1) or (num_defaults != 1)):
self.st.out(self.template_union_code_save_discriminant_enum, discname=un.identifier() )
self.addvar(self.c_s_disc + un.identifier() + ";")
elif (st.kind() == idltype.tk_long):
self.st.out(self.template_union_code_save_discriminant_long, discname=un.identifier() )
self.addvar(self.c_s_disc + un.identifier() + ";")
elif (st.kind() == idltype.tk_ulong):
self.st.out(self.template_union_code_save_discriminant_ulong, discname=un.identifier() )
self.addvar(self.c_s_disc + un.identifier() + ";")
elif (st.kind() == idltype.tk_short):
self.st.out(self.template_union_code_save_discriminant_short, discname=un.identifier() )
self.addvar(self.c_s_disc + un.identifier() + ";")
elif (st.kind() == idltype.tk_ushort):
self.st.out(self.template_union_code_save_discriminant_ushort, discname=un.identifier() )
self.addvar(self.c_s_disc + un.identifier() + ";")
elif (st.kind() == idltype.tk_boolean):
self.st.out(self.template_union_code_save_discriminant_boolean, discname=un.identifier() )
self.addvar(self.c_s_disc + un.identifier() + ";")
elif (st.kind() == idltype.tk_char):
self.st.out(self.template_union_code_save_discriminant_char, discname=un.identifier() )
self.addvar(self.c_s_disc + un.identifier() + ";")
else:
print "XXX Unknown st.kind() = ", st.kind()
#
# Loop over all cases in this union
#
for uc in un.cases(): # for all UnionCase objects in this union
for cl in uc.labels(): # for all Caselabel objects in this UnionCase
# get integer value, even if discriminant is
# an Enumerator node
if isinstance(cl.value(),idlast.Enumerator):
if self.DEBUG:
print "XXX clv.identifier()", cl.value().identifier()
print "XXX clv.repoId()", cl.value().repoId()
print "XXX clv.scopedName()", cl.value().scopedName()
# find index of enumerator in enum declaration
# eg: RED is index 0 in enum Colors { RED, BLUE, GREEN }
clv = self.valFromEnum(std,cl.value())
else:
clv = cl.value()
#print "XXX clv = ",clv
#
# if char, dont convert to int, but put inside single quotes so that it is understood by C.
# eg: if (disc == 'b')..
#
# TODO : handle \xxx chars generically from a function or table lookup rather than
# a whole bunch of "if" statements. -- FS
if (st.kind() == idltype.tk_char):
if (clv == '\n'): # newline
string_clv = "'\\n'"
elif (clv == '\t'): # tab
string_clv = "'\\t'"
else:
string_clv = "'" + clv + "'"
else:
string_clv = '%i ' % clv
#
# If default case, then skp comparison with discriminator
#
if not cl.default():
self.st.out(self.template_comment_union_code_label_compare_start, discname=un.identifier(),labelval=string_clv )
self.st.inc_indent()
else:
self.st.out(self.template_comment_union_code_label_default_start )
self.getCDR(uc.caseType(),sname + "_" + uc.declarator().identifier())
if not cl.default():
self.st.dec_indent()
self.st.out(self.template_comment_union_code_label_compare_end )
else:
self.st.out(self.template_comment_union_code_label_default_end )
self.st.dec_indent()
self.st.out(self.template_union_helper_function_end)
#
# Currently, get_CDR_alias is geared to finding typdef
#
def get_CDR_alias(self,type,pn):
if self.DEBUG:
print "XXX get_CDR_alias, type = " ,type , " pn = " , pn
print "XXX get_CDR_alias, type.decl() = " ,type.decl()
print "XXX get_CDR_alias, type.decl().alias() = " ,type.decl().alias()
decl = type.decl() # get declarator object
if (decl.sizes()): # a typedef array
indices = self.get_indices_from_sizes(decl.sizes())
string_indices = '%i ' % indices # convert int to string
self.st.out(self.template_get_CDR_array_comment, aname=pn, asize=string_indices)
self.st.out(self.template_get_CDR_array_start, aname=pn, aval=string_indices)
self.addvar(self.c_i + pn + ";")
self.st.inc_indent()
self.getCDR(type.decl().alias().aliasType(), pn )
self.st.dec_indent()
self.st.out(self.template_get_CDR_array_end)
else: # a simple typdef
self.getCDR(type, pn )
#
# Handle structs, including recursive
#
def get_CDR_struct(self,type,pn):
# If I am a typedef struct {..}; node then find the struct node
if isinstance(type.decl(), idlast.Declarator):
ntype = type.decl().alias().aliasType().decl()
else:
ntype = type.decl() # I am a struct node
sname = self.namespace(ntype, "_")
self.st.out(self.template_structure_start, name=sname )
# Output a call to the struct helper function so I can handle recursive structs also.
self.st.out(self.template_decode_struct,name=sname)
self.st.out(self.template_structure_end, name=sname )
#
# genStructhelper()
#
# Generate private helper functions to decode a struct
#
# in: stnode ( a struct node)
#
def genStructHelper(self,st):
if self.DEBUG:
print "XXX genStructHelper"
sname = self.namespace(st, "_")
self.curr_sname = sname # update current opnode/exnode/stnode scoped name
if not self.fn_hash_built:
self.fn_hash[sname] = [] # init empty list as val for this sname key
# but only if the fn_hash is not already built
self.st.out(self.template_struct_helper_function_start, sname=sname, stname=st.repoId())
self.st.inc_indent()
if (len(self.fn_hash[sname]) > 0):
self.st.out(self.template_helper_function_vars_start)
self.dumpCvars(sname)
self.st.out(self.template_helper_function_vars_end_item )
for m in st.members():
for decl in m.declarators():
if decl.sizes(): # an array
indices = self.get_indices_from_sizes(decl.sizes())
string_indices = '%i ' % indices # convert int to string
self.st.out(self.template_get_CDR_array_comment, aname=decl.identifier(), asize=string_indices)
self.st.out(self.template_get_CDR_array_start, aname=decl.identifier(), aval=string_indices)
self.addvar(self.c_i + decl.identifier() + ";")
self.st.inc_indent()
self.getCDR(m.memberType(), sname + "_" + decl.identifier() )
self.st.dec_indent()
self.st.out(self.template_get_CDR_array_end)
else:
self.getCDR(m.memberType(), sname + "_" + decl.identifier() )
self.st.dec_indent()
self.st.out(self.template_struct_helper_function_end)
#
# Generate code to access a sequence of a type
#
def get_CDR_sequence(self,type,pn):
if self.DEBUG:
print "XXX get_CDR_sequence"
self.st.out(self.template_get_CDR_sequence_length, seqname=pn )
self.st.out(self.template_get_CDR_sequence_loop_start, seqname=pn )
self.addvar(self.c_i_lim + pn + ";" )
self.addvar(self.c_i + pn + ";")
self.st.inc_indent()
self.getCDR(type.unalias().seqType(), pn ) # and start all over with the type
self.st.dec_indent()
self.st.out(self.template_get_CDR_sequence_loop_end)
#
# Generate code to access a sequence of octet
#
def get_CDR_sequence_octet(self,type, pn):
if self.DEBUG:
print "XXX get_CDR_sequence_octet"
self.st.out(self.template_get_CDR_sequence_length, seqname=pn)
self.st.out(self.template_get_CDR_sequence_octet, seqname=pn)
self.addvar(self.c_i_lim + pn + ";")
self.addvar("const gchar * binary_seq_" + pn + ";")
self.addvar("gchar * text_seq_" + pn + ";")
#
# namespace()
#
# in - op node
#
# out - scoped operation name, using sep character instead of "::"
#
# eg: Penguin::Echo::echoWString => Penguin_Echo_echoWString if sep = "_"
#
#
def namespace(self,node,sep):
sname = string.replace(idlutil.ccolonName(node.scopedName()), '::', sep)
#print "XXX namespace: sname = " + sname
return sname
#
# generate code for plugin initialisation
#
def gen_plugin_register(self):
self.st.out(self.template_plugin_register, description=self.description, protocol_name=self.protoname, dissector_name=self.dissname)
#
# generate register_giop_user_module code, and register only
# unique interfaces that contain operations. Also output
# a heuristic register in case we want to use that.
#
# TODO - make this a command line option
#
# -e explicit
# -h heuristic
#
def gen_proto_reg_handoff(self, oplist):
self.st.out(self.template_proto_reg_handoff_start, dissector_name=self.dissname)
self.st.inc_indent()
for iname in self.get_intlist(oplist):
self.st.out(self.template_proto_reg_handoff_body, dissector_name=self.dissname, protocol_name=self.protoname, interface=iname )
self.st.out(self.template_proto_reg_handoff_heuristic, dissector_name=self.dissname, protocol_name=self.protoname)
self.st.dec_indent()
self.st.out(self.template_proto_reg_handoff_end)
#
# generate hf_ array element for operation, attribute, enums, struct and union lists
#
def genOp_hf(self,op):
sname = self.namespace(op, "_")
opname = sname[string.find(sname, "_")+1:]
opname = opname[:string.find(opname, "_")]
rt = op.returnType()
if (rt.kind() != idltype.tk_void):
if (rt.kind() == idltype.tk_alias): # a typdef return val possibly ?
self.getCDR_hf(rt, rt.name(),\
opname + "." + op.identifier() + ".return", sname + "_return")
else:
self.getCDR_hf(rt, "Return value",\
opname + "." + op.identifier() + ".return", sname + "_return")
for p in op.parameters():
self.getCDR_hf(p.paramType(), p.identifier(),\
opname + "." + op.identifier() + "." + p.identifier(), sname + "_" + p.identifier())
def genAt_hf(self,at):
for decl in at.declarators():
sname = self.namespace(decl, "_")
atname = sname[string.find(sname, "_")+1:]
atname = atname[:string.find(atname, "_")]
self.getCDR_hf(at.attrType(), decl.identifier(),\
atname + "." + decl.identifier() + ".get", "get" + "_" + sname + "_" + decl.identifier())
if not at.readonly():
self.getCDR_hf(at.attrType(), decl.identifier(),\
atname + "." + decl.identifier() + ".set", "set" + "_" + sname + "_" + decl.identifier())
def genSt_hf(self,st):
sname = self.namespace(st, "_")
stname = sname[string.find(sname, "_")+1:]
stname = stname[:string.find(stname, "_")]
for m in st.members():
for decl in m.declarators():
self.getCDR_hf(m.memberType(), st.identifier() + "_" + decl.identifier(),\
st.identifier() + "." + decl.identifier(), sname + "_" + decl.identifier())
def genEx_hf(self,ex):
sname = self.namespace(ex, "_")
exname = sname[string.find(sname, "_")+1:]
exname = exname[:string.find(exname, "_")]
for m in ex.members():
for decl in m.declarators():
self.getCDR_hf(m.memberType(), ex.identifier() + "_" + decl.identifier(),\
exname + "." + ex.identifier() + "_" + decl.identifier(), sname + "_" + decl.identifier())
def genUnion_hf(self,un):
sname = self.namespace(un, "_")
unname = sname[:string.rfind(sname, "_")]
unname = string.replace(unname, "_", ".")
self.getCDR_hf(un.switchType().unalias(), un.identifier(),\
unname + "." + un.identifier(), sname + "_" + un.identifier())
for uc in un.cases(): # for all UnionCase objects in this union
for cl in uc.labels(): # for all Caselabel objects in this UnionCase
self.getCDR_hf(uc.caseType(), un.identifier() + "_" + uc.declarator().identifier(),\
unname + "." + un.identifier() + "." + uc.declarator().identifier(),\
sname + "_" + uc.declarator().identifier())
#
# generate proto_register_<protoname> code,
#
# in - oplist[], atlist[], stline[], unlist[]
#
def gen_proto_register(self, oplist, atlist, stlist, unlist):
self.st.out(self.template_proto_register_start, dissector_name=self.dissname)
#operation specific filters
self.st.out(self.template_proto_register_op_filter_comment)
for op in oplist:
self.genOp_hf(op)
#attribute filters
self.st.out(self.template_proto_register_at_filter_comment)
for at in atlist:
self.genAt_hf(at)
#struct filters
self.st.out(self.template_proto_register_st_filter_comment)
for st in stlist:
if (st.members()): # only if has members
self.genSt_hf(st)
# exception List filters
exlist = self.get_exceptionList(oplist) # grab list of exception nodes
self.st.out(self.template_proto_register_ex_filter_comment)
for ex in exlist:
if (ex.members()): # only if has members
self.genEx_hf(ex)
# Union filters
self.st.out(self.template_proto_register_un_filter_comment)
for un in unlist:
self.genUnion_hf(un)
self.st.out(self.template_proto_register_end, description=self.description, protocol_name=self.protoname, dissector_name=self.dissname)
#
# in - oplist[]
#
# out - a list of unique interface names. This will be used in
# register_giop_user_module(dissect_giop_auto, "TEST IDL", "Penguin/Echo" ); so the operation
# name must be removed from the scope. And we also only want unique interfaces.
#
def get_intlist(self,oplist):
int_hash = {} # holds a hash of unique interfaces
for op in oplist:
sc = op.scopedName() # eg: penguin,tux,bite
sc1 = sc[:-1] # drop last entry
sn = idlutil.slashName(sc1) # penguin/tux
if not int_hash.has_key(sn):
int_hash[sn] = 0; # dummy val, but at least key is unique
ret = int_hash.keys()
ret.sort()
return ret
#
# in - oplist[]
#
# out - a list of exception nodes (unique). This will be used in
# to generate dissect_exception_XXX functions.
#
def get_exceptionList(self,oplist):
ex_hash = {} # holds a hash of unique exceptions.
for op in oplist:
for ex in op.raises():
if not ex_hash.has_key(ex):
ex_hash[ex] = 0; # dummy val, but at least key is unique
if self.DEBUG:
print "XXX Exception = " + ex.identifier()
ret = ex_hash.keys()
ret.sort()
return ret
#
# Simple function to take a list of array sizes and find the
# total number of elements
#
#
# eg: temp[4][3] = 12 elements
#
def get_indices_from_sizes(self,sizelist):
val = 1;
for i in sizelist:
val = val * i
return val
#
# Determine how many octets contain requested number
# of digits for an "fixed" IDL type "on the wire"
#
def dig_to_len(self,dignum):
return (dignum/2) + 1
#
# Output some TODO comment
#
def genTODO(self,message):
self.st.out(self.template_debug_TODO, message=message)
#
# Output some WARNING comment
#
def genWARNING(self,message):
self.st.out(self.template_debug_WARNING, message=message)
#
# Templates for C code
#
template_helper_function_comment = """\
/*
* @repoid@
*/"""
template_helper_function_vars_start = """\
/* Operation specific Variable declarations Begin */"""
template_helper_function_vars_end = """\
/* Operation specific Variable declarations End */
"""
template_helper_function_vars_end_item = """\
/* Operation specific Variable declarations End */
"""
template_helper_function_start = """\
static void
decode_@sname@(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, proto_item *item _U_, int *offset _U_, MessageHeader *header, const gchar *operation _U_, gboolean stream_is_big_endian _U_)
{"""
template_helper_function_end = """\
}
"""
#
# proto_reg_handoff() templates
#
template_proto_reg_handoff_start = """\
/* register me as handler for these interfaces */
void proto_reg_handoff_giop_@dissector_name@(void)
{"""
template_proto_reg_handoff_body = """\
/* Register for Explicit Dissection */
register_giop_user_module(dissect_@dissector_name@, \"@protocol_name@\", \"@interface@\", proto_@dissector_name@ ); /* explicit dissector */
"""
template_proto_reg_handoff_heuristic = """\
/* Register for Heuristic Dissection */
register_giop_user(dissect_@dissector_name@, \"@protocol_name@\" ,proto_@dissector_name@); /* heuristic dissector */
"""
template_proto_reg_handoff_end = """\
}
"""
#
# Prototype
#
template_prototype = """
void proto_register_giop_@dissector_name@(void);
void proto_reg_handoff_giop_@dissector_name@(void);"""
#
# Initialize the protocol
#
template_protocol = """
/* Initialise the protocol and subtree pointers */
static int proto_@dissector_name@ = -1;
static gint ett_@dissector_name@ = -1;
"""
#
# Initialize the boundary Alignment
#
template_init_boundary = """
/* Initialise the initial Alignment */
static guint32 boundary = GIOP_HEADER_SIZE; /* initial value */"""
#
# plugin_register and plugin_reg_handoff templates
#
template_plugin_register = """
#if 0
WS_DLL_PUBLIC_DEF void
plugin_register(void)
{
if (proto_@dissector_name@ == -1) {
proto_register_giop_@dissector_name@();
}
}
WS_DLL_PUBLIC_DEF void
plugin_reg_handoff(void){
proto_register_handoff_giop_@dissector_name@();
}
#endif
"""
#
# proto_register_<dissector name>(void) templates
#
template_proto_register_start = """
/* Register the protocol with Wireshark */
void proto_register_giop_@dissector_name@(void)
{
/* setup list of header fields */
static hf_register_info hf[] = {
/* field that indicates the currently ongoing request/reply exchange */
{&hf_operationrequest, {"Request_Operation","giop-@dissector_name@.Request_Operation",FT_STRING,BASE_NONE,NULL,0x0,NULL,HFILL}},"""
template_proto_register_end = """
};
static ei_register_info ei[] = {
{ &ei_@dissector_name@_unknown_giop_msg, { "giop-@dissector_name@.unknown_giop_msg", PI_PROTOCOL, PI_WARN, "Unknown GIOP message", EXPFILL }},
{ &ei_@dissector_name@_unknown_exception, { "giop-@dissector_name@.unknown_exception", PI_PROTOCOL, PI_WARN, "Unknown exception", EXPFILL }},
{ &ei_@dissector_name@_unknown_reply_status, { "giop-@dissector_name@.unknown_reply_status", PI_PROTOCOL, PI_WARN, "Unknown reply status", EXPFILL }},
};
/* setup protocol subtree array */
static gint *ett[] = {
&ett_@dissector_name@,
};
expert_module_t* expert_@dissector_name@;
/* Register the protocol name and description */
proto_@dissector_name@ = proto_register_protocol(\"@description@\" , \"@protocol_name@\", \"giop-@dissector_name@\" );
proto_register_field_array(proto_@dissector_name@, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_@dissector_name@ = expert_register_protocol(proto_@dissector_name@);
expert_register_field_array(expert_@dissector_name@, ei, array_length(ei));
}
"""
template_proto_register_op_filter_comment = """\
/* Operation filters */"""
template_proto_register_at_filter_comment = """\
/* Attribute filters */"""
template_proto_register_st_filter_comment = """\
/* Struct filters */"""
template_proto_register_ex_filter_comment = """\
/* User exception filters */"""
template_proto_register_un_filter_comment = """\
/* Union filters */"""
template_proto_register_ei_filters = """\
/* Expert info filters */
static expert_field ei_@dissector_name@_unknown_giop_msg = EI_INIT;
static expert_field ei_@dissector_name@_unknown_exception = EI_INIT;
static expert_field ei_@dissector_name@_unknown_reply_status = EI_INIT;
"""
#
# template for delegation code
#
template_op_delegate_code = """\
if (strcmp(operation, "@opname@") == 0
&& (!idlname || strcmp(idlname, \"@interface@\") == 0)) {
item = process_RequestOperation(tvb, pinfo, ptree, header, operation); /* fill-up Request_Operation field & info column */
tree = start_dissecting(tvb, pinfo, ptree, offset);
decode_@sname@(tvb, pinfo, tree, item, offset, header, operation, stream_is_big_endian);
return TRUE;
}
"""
#
# Templates for the helper functions
#
#
#
template_helper_switch_msgtype_start = """\
switch(header->message_type) {"""
template_helper_switch_msgtype_default_start = """\
default:
/* Unknown GIOP Message */
expert_add_info_format(pinfo, item, &ei_@dissector_name@_unknown_giop_msg, "Unknown GIOP message %d", header->message_type);"""
template_helper_switch_msgtype_default_end = """\
break;"""
template_helper_switch_msgtype_end = """\
} /* switch(header->message_type) */"""
template_helper_switch_msgtype_request_start = """\
case Request:"""
template_helper_switch_msgtype_request_end = """\
break;"""
template_helper_switch_msgtype_reply_start = """\
case Reply:"""
template_helper_switch_msgtype_reply_no_exception_start = """\
case NO_EXCEPTION:"""
template_helper_switch_msgtype_reply_no_exception_end = """\
break;"""
template_helper_switch_msgtype_reply_user_exception_start = """\
case USER_EXCEPTION:"""
template_helper_switch_msgtype_reply_user_exception_end = """\
break;"""
template_helper_switch_msgtype_reply_default_start = """\
default:
/* Unknown Exception */
expert_add_info_format(pinfo, item, &ei_@dissector_name@_unknown_exception, "Unknown exception %d", header->rep_status);"""
template_helper_switch_msgtype_reply_default_end = """\
break;"""
template_helper_switch_msgtype_reply_end = """\
break;"""
template_helper_switch_msgtype_default_start = """\
default:
/* Unknown GIOP Message */
expert_add_info_format(pinfo, item, &ei_@dissector_name@_unknown_giop_msg, "Unknown GIOP message %d", header->message_type);"""
template_helper_switch_msgtype_default_end = """\
break;"""
template_helper_switch_rep_status_start = """\
switch(header->rep_status) {"""
template_helper_switch_rep_status_default_start = """\
default:
/* Unknown Reply Status */
expert_add_info_format(pinfo, item, &ei_@dissector_name@_unknown_reply_status, "Unknown reply status %d", header->rep_status);"""
template_helper_switch_rep_status_default_end = """\
break;"""
template_helper_switch_rep_status_end = """\
} /* switch(header->rep_status) */
break;"""
#
# Templates for get_CDR_xxx accessors
#
template_get_CDR_ulong = """\
proto_tree_add_uint(tree, hf_@hfname@, tvb, *offset-4, 4, get_CDR_ulong(tvb,offset,stream_is_big_endian, boundary));
"""
template_get_CDR_short = """\
proto_tree_add_int(tree, hf_@hfname@, tvb, *offset-2, 2, get_CDR_short(tvb,offset,stream_is_big_endian, boundary));
"""
template_get_CDR_void = """\
/* Function returns void */
"""
template_get_CDR_long = """\
proto_tree_add_int(tree, hf_@hfname@, tvb, *offset-4, 4, get_CDR_long(tvb,offset,stream_is_big_endian, boundary));
"""
template_get_CDR_ushort = """\
proto_tree_add_uint(tree, hf_@hfname@, tvb, *offset-2, 2, get_CDR_ushort(tvb,offset,stream_is_big_endian, boundary));
"""
template_get_CDR_float = """\
proto_tree_add_float(tree, hf_@hfname@, tvb, *offset-4, 4, get_CDR_float(tvb,offset,stream_is_big_endian, boundary));
"""
template_get_CDR_double = """\
proto_tree_add_double(tree, hf_@hfname@, tvb, *offset-8, 8, get_CDR_double(tvb,offset,stream_is_big_endian, boundary));
"""
template_get_CDR_longlong = """\
proto_tree_add_int64(tree, hf_@hfname@, tvb, *offset-8, 8, get_CDR_long_long(tvb,offset,stream_is_big_endian, boundary));
"""
template_get_CDR_ulonglong = """\
proto_tree_add_uint64(tree, hf_@hfname@, tvb, *offset-8, 8, get_CDR_ulong_long(tvb,offset,stream_is_big_endian, boundary));
"""
template_get_CDR_boolean = """\
proto_tree_add_boolean(tree, hf_@hfname@, tvb, *offset-1, 1, get_CDR_boolean(tvb,offset));
"""
template_get_CDR_char = """\
proto_tree_add_uint(tree, hf_@hfname@, tvb, *offset-1, 1, get_CDR_char(tvb,offset));
"""
template_get_CDR_octet = """\
proto_tree_add_uint(tree, hf_@hfname@, tvb, *offset-1, 1, get_CDR_octet(tvb,offset));
"""
template_get_CDR_any = """\
get_CDR_any(tvb, pinfo, tree, item, offset, stream_is_big_endian, boundary, header);
"""
template_get_CDR_fixed = """\
get_CDR_fixed(tvb, pinfo, item, &seq, offset, @digits@, @scale@);
proto_tree_add_string_format_value(tree, hf_@hfname@, tvb, *offset-@length@, @length@, seq, "< @digits@, @scale@> = %s", seq);
"""
template_get_CDR_enum_symbolic = """\
u_octet4 = get_CDR_enum(tvb,offset,stream_is_big_endian, boundary);
proto_tree_add_uint(tree, hf_@hfname@, tvb, *offset-4, 4, u_octet4);
"""
template_get_CDR_string = """\
giop_add_CDR_string(tree, tvb, offset, stream_is_big_endian, boundary, hf_@hfname@);
"""
template_get_CDR_wstring = """\
u_octet4 = get_CDR_wstring(tvb, &seq, offset, stream_is_big_endian, boundary, header);
proto_tree_add_string(tree, hf_@hfname@, tvb, *offset-u_octet4, u_octet4, (u_octet4 > 0) ? seq : \"\");
"""
template_get_CDR_wchar = """\
s_octet1 = get_CDR_wchar(tvb, &seq, offset, header);
if (tree) {
if (s_octet1 > 0)
proto_tree_add_uint(tree, hf_@hfname@_len, tvb, *offset-1-s_octet1, 1, s_octet1);
if (s_octet1 < 0)
s_octet1 = -s_octet1;
if (s_octet1 > 0)
proto_tree_add_string(tree, hf_@hfname@, tvb, *offset-s_octet1, s_octet1, seq);
}
"""
template_get_CDR_TypeCode = """\
u_octet4 = get_CDR_typeCode(tvb, pinfo, tree, offset, stream_is_big_endian, boundary, header);
"""
template_get_CDR_object = """\
get_CDR_object(tvb, pinfo, tree, offset, stream_is_big_endian, boundary);
"""
template_get_CDR_sequence_length = """\
u_octet4_loop_@seqname@ = get_CDR_ulong(tvb, offset, stream_is_big_endian, boundary);
proto_tree_add_uint(tree, hf_@seqname@_loop, tvb,*offset-4, 4, u_octet4_loop_@seqname@);
"""
template_get_CDR_sequence_length_item = """\
u_octet4_loop_@seqname@ = get_CDR_ulong(tvb, offset, stream_is_big_endian, boundary);
item = proto_tree_add_uint(tree, hf_@seqname@_loop, tvb,*offset-4, 4, u_octet4_loop_@seqname@);
"""
template_get_CDR_sequence_loop_start = """\
for (i_@seqname@=0; i_@seqname@ < u_octet4_loop_@seqname@; i_@seqname@++) {
"""
template_get_CDR_sequence_loop_end = """\
}
"""
template_get_CDR_sequence_octet = """\
if (u_octet4_loop_@seqname@ > 0 && tree) {
get_CDR_octet_seq(tvb, &binary_seq_@seqname@, offset,
u_octet4_loop_@seqname@);
text_seq_@seqname@ = make_printable_string(binary_seq_@seqname@,
u_octet4_loop_@seqname@);
proto_tree_add_bytes_format_value(tree, hf_@seqname@, tvb, *offset - u_octet4_loop_@seqname@,
u_octet4_loop_@seqname@, binary_seq_@seqname@, \"%s\", text_seq_@seqname@);
}
"""
template_get_CDR_array_start = """\
for (i_@aname@=0; i_@aname@ < @aval@; i_@aname@++) {
"""
template_get_CDR_array_end = """\
}
"""
template_get_CDR_array_comment = """\
/* Array: @aname@[ @asize@] */
"""
template_structure_start = """\
/* Begin struct \"@name@\" */"""
template_structure_end = """\
/* End struct \"@name@\" */"""
template_union_start = """\
/* Begin union \"@name@\" */"""
template_union_end = """\
/* End union \"@name@\" */"""
#
# Templates for get_CDR_xxx_hf accessors
#
template_get_CDR_ulong_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_UINT32,BASE_DEC,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_short_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_INT16,BASE_DEC,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_long_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_INT32,BASE_DEC,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_ushort_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_UINT16,BASE_DEC,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_float_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_FLOAT,BASE_NONE,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_double_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_DOUBLE,BASE_NONE,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_fixed_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_STRING,BASE_NONE,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_longlong_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_INT64,BASE_DEC,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_ulonglong_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_UINT64,BASE_DEC,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_boolean_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_BOOLEAN,8,NULL,0x01,NULL,HFILL}},"""
template_get_CDR_char_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_UINT8,BASE_DEC,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_octet_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_UINT8,BASE_HEX,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_enum_symbolic_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_UINT32,BASE_DEC,VALS(@valstringarray@),0x0,NULL,HFILL}},"""
template_get_CDR_string_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_STRING,BASE_NONE,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_wstring_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_STRING,BASE_NONE,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_wchar_hf = """\
{&hf_@hfname@_len, {"@descname@ Length","giop-@dissector_name@.@filtername@.len",FT_UINT8,BASE_DEC,NULL,0x0,NULL,HFILL}},
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_STRING,BASE_NONE,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_TypeCode_hf = """\
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_UINT32,BASE_DEC,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_sequence_hf = """\
{&hf_@hfname@_loop, {"Seq length of @descname@","giop-@dissector_name@.@filtername@.size",FT_UINT32,BASE_DEC,NULL,0x0,NULL,HFILL}},"""
template_get_CDR_sequence_octet_hf = """\
{&hf_@hfname@_loop, {"Seq length of @descname@","giop-@dissector_name@.@filtername@.size",FT_UINT32,BASE_DEC,NULL,0x0,NULL,HFILL}},
{&hf_@hfname@, {"@descname@","giop-@dissector_name@.@filtername@",FT_BYTES,BASE_NONE,NULL,0x0,NULL,HFILL}},"""
#
# Program Header Template
#
template_Header = """\
/* packet-@dissector_name@.c
*
* Routines for IDL dissection
*
* Autogenerated from idl2wrs
* Copyright 2001 Frank Singleton <frank.singleton@@ericsson.com>
*/
"""
template_wireshark_copyright = """\
/*
* Wireshark - Network traffic analyzer
* By Gerald Combs
* Copyright 1999 - 2012 Gerald Combs
*/
"""
#
# GPL Template
#
template_GPL = """\
/*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
"""
#
# Modelines Template
#
template_Modelines = """\
/*
* Editor modelines
*
* Local Variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/"""
#
# Includes template
#
template_Includes = """\
#include "config.h"
#include <gmodule.h>
#include <string.h>
#include <glib.h>
#include <epan/packet.h>
#include <epan/proto.h>
#include <epan/dissectors/packet-giop.h>
#include <epan/expert.h>
#ifdef _MSC_VER
/* disable warning: "unreference local variable" */
#pragma warning(disable:4101)
#endif
#if defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wunused-function"
#pragma GCC diagnostic ignored "-Wunused-variable"
#endif"""
#
# Main dissector entry templates
#
template_main_dissector_start = """\
/*
* Called once we accept the packet as being for us; it sets the
* Protocol and Info columns and creates the top-level protocol
* tree item.
*/
static proto_tree *
start_dissecting(tvbuff_t *tvb, packet_info *pinfo, proto_tree *ptree, int *offset)
{
proto_item *ti = NULL;
proto_tree *tree = NULL; /* init later, inside if(tree) */
col_set_str(pinfo->cinfo, COL_PROTOCOL, \"@disprot@\");
/*
* Do not clear COL_INFO, as nothing is being written there by
* this dissector yet. So leave it as is from the GIOP dissector.
* TODO: add something useful to COL_INFO
* col_clear(pinfo->cinfo, COL_INFO);
*/
if (ptree) {
ti = proto_tree_add_item(ptree, proto_@dissname@, tvb, *offset, tvb_reported_length_remaining(tvb, *offset), ENC_NA);
tree = proto_item_add_subtree(ti, ett_@dissname@);
}
return tree;
}
static proto_item*
process_RequestOperation(tvbuff_t *tvb, packet_info *pinfo, proto_tree *ptree, MessageHeader *header, const gchar *operation)
{
proto_item *pi;
if(header->message_type == Reply) {
/* fill-up info column */
col_append_fstr(pinfo->cinfo, COL_INFO, " op = %s",operation);
}
/* fill-up the field */
pi=proto_tree_add_string(ptree, hf_operationrequest, tvb, 0, 0, operation);
PROTO_ITEM_SET_GENERATED(pi);
return pi;
}
static gboolean
dissect_@dissname@(tvbuff_t *tvb, packet_info *pinfo, proto_tree *ptree, int *offset, MessageHeader *header, const gchar *operation, gchar *idlname)
{
proto_item *item _U_;
proto_tree *tree _U_;
gboolean stream_is_big_endian = is_big_endian(header); /* get endianess */
/* If we have a USER Exception, then decode it and return */
if ((header->message_type == Reply) && (header->rep_status == USER_EXCEPTION)) {
return decode_user_exception(tvb, pinfo, ptree, offset, header, operation, stream_is_big_endian);
}
"""
template_main_dissector_switch_msgtype_start = """\
switch(header->message_type) {
"""
template_main_dissector_switch_msgtype_start_request_reply = """\
case Request:
case Reply:
"""
template_main_dissector_switch_msgtype_end_request_reply = """\
break;
"""
template_main_dissector_switch_msgtype_all_other_msgtype = """\
case CancelRequest:
case LocateRequest:
case LocateReply:
case CloseConnection:
case MessageError:
case Fragment:
return FALSE; /* not handled yet */
default:
return FALSE; /* not handled yet */
} /* switch */
"""
template_main_dissector_end = """\
return FALSE;
} /* End of main dissector */
"""
#-------------------------------------------------------------#
# Exception handling templates #
#-------------------------------------------------------------#
template_exception_helpers_start = """\
/* Begin Exception Helper Functions */
"""
template_exception_helpers_end = """\
/* End Exception Helper Functions */
"""
#
# template for Main delegator for exception handling
#
template_main_exception_delegator_start = """\
/*
* Main delegator for exception handling
*
*/
static gboolean
decode_user_exception(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *ptree _U_, int *offset _U_, MessageHeader *header, const gchar *operation _U_, gboolean stream_is_big_endian _U_)
{
proto_tree *tree _U_;
if (!header->exception_id)
return FALSE;
"""
#
# template for exception delegation code body
#
template_ex_delegate_code = """\
if (strcmp(header->exception_id, "@exname@") == 0) {
tree = start_dissecting(tvb, pinfo, ptree, offset);
decode_ex_@sname@(tvb, pinfo, tree, offset, header, operation, stream_is_big_endian); /* @exname@ */
return TRUE;
}
"""
#
# End of Main delegator for exception handling
#
template_main_exception_delegator_end = """
return FALSE; /* user exception not found */
}
"""
#
# template for exception helper code
#
template_exception_helper_function_start_no_item = """\
/* Exception = @exname@ */
static void
decode_ex_@sname@(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, int *offset _U_, MessageHeader *header _U_, const gchar *operation _U_, gboolean stream_is_big_endian _U_)
{
proto_item *item _U_;
"""
template_exception_helper_function_start_item = """\
/* Exception = @exname@ */
static void
decode_ex_@sname@(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, int *offset _U_, MessageHeader *header _U_, const gchar *operation _U_, gboolean stream_is_big_endian _U_)
{
proto_item *item = NULL;
"""
template_exception_helper_function_end = """\
}
"""
#
# template for struct helper code
#
template_struct_helper_function_start = """\
/* Struct = @stname@ */
static void
decode_@sname@_st(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, proto_item *item _U_, int *offset _U_, MessageHeader *header _U_, const gchar *operation _U_, gboolean stream_is_big_endian _U_)
{
"""
template_struct_helper_function_end = """\
}
"""
#
# template for union helper code
#
template_union_helper_function_start = """\
/* Union = @unname@ */
static void
decode_@sname@_un(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, int *offset _U_, MessageHeader *header _U_, const gchar *operation _U_, gboolean stream_is_big_endian _U_)
{
"""
template_union_helper_function_start_with_item = """\
/* Union = @unname@ */
static void
decode_@sname@_un(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, int *offset _U_, MessageHeader *header _U_, const gchar *operation _U_, gboolean stream_is_big_endian _U_)
{
proto_item* item = NULL;
"""
template_union_helper_function_end = """\
}
"""
#-------------------------------------------------------------#
# Value string templates #
#-------------------------------------------------------------#
template_value_string_start = """\
static const value_string @valstringname@[] = {
"""
template_value_string_entry = """\
{ @intval@, \"@description@\" },"""
template_value_string_end = """\
{ 0, NULL },
};
"""
#-------------------------------------------------------------#
# Enum handling templates #
#-------------------------------------------------------------#
template_comment_enums_start = """\
/*
* IDL Enums Start
*/
"""
template_comment_enums_end = """\
/*
* IDL Enums End
*/
"""
template_comment_enum_comment = """\
/*
* Enum = @ename@
*/"""
#-------------------------------------------------------------#
# Attribute handling templates #
#-------------------------------------------------------------#
template_comment_attributes_start = """\
/*
* IDL Attributes Start
*/
"""
#
# get/set accessor method names are language mapping dependent.
#
template_attributes_declare_Java_get = """static const char get_@sname@_at[] = \"_get_@atname@\" ;"""
template_attributes_declare_Java_set = """static const char set_@sname@_at[] = \"_set_@atname@\" ;"""
template_comment_attributes_end = """
/*
* IDL Attributes End
*/
"""
#
# template for Attribute delegation code
#
# Note: _get_xxx() should only be called for Reply with NO_EXCEPTION
# Note: _set_xxx() should only be called for Request
#
#
template_at_delegate_code_get = """\
if (strcmp(operation, get_@sname@_at) == 0 && (header->message_type == Reply) && (header->rep_status == NO_EXCEPTION) ) {
tree = start_dissecting(tvb, pinfo, ptree, offset);
decode_get_@sname@_at(tvb, pinfo, tree, offset, header, operation, stream_is_big_endian);
return TRUE;
}
"""
template_at_delegate_code_set = """\
if (strcmp(operation, set_@sname@_at) == 0 && (header->message_type == Request) ) {
tree = start_dissecting(tvb, pinfo, ptree, offset);
decode_set_@sname@_at(tvb, pinfo, tree, offset, header, operation, stream_is_big_endian);
return TRUE;
}
"""
template_attribute_helpers_start = """\
/* Begin Attribute Helper Functions */
"""
template_attribute_helpers_end = """\
/* End Attribute Helper Functions */
"""
#
# template for attribute helper code
#
template_attribute_helper_function_start = """\
/* Attribute = @atname@ */
static void
decode_@sname@_at(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, int *offset _U_, MessageHeader *header _U_, const gchar *operation _U_, gboolean stream_is_big_endian _U_)
{
proto_item* item _U_;
"""
template_attribute_helper_function_end = """\
}
"""
#-------------------------------------------------------------#
# Debugging templates #
#-------------------------------------------------------------#
#
# Template for outputting TODO "C" comments
# so user know I need ti improve something.
#
template_debug_TODO = """\
/* TODO - @message@ */
"""
#
# Template for outputting WARNING "C" comments
# so user know if I have found a problem.
#
template_debug_WARNING = """\
/* WARNING - @message@ */
"""
#-------------------------------------------------------------#
# IDL Union templates #
#-------------------------------------------------------------#
template_comment_union_code_start = """\
/*
* IDL Union Start - @uname@
*/
"""
template_comment_union_code_end = """
/*
* IDL union End - @uname@
*/
"""
template_comment_union_code_discriminant = """\
/*
* IDL Union - Discriminant - @uname@
*/
"""
#
# Cast Unions types to something appropriate
# Enum value cast to guint32, all others cast to gint32
# as omniidl accessor returns integer or Enum.
#
template_union_code_save_discriminant_enum = """\
disc_s_@discname@ = (gint32) u_octet4; /* save Enum Value discriminant and cast to gint32 */
"""
template_union_code_save_discriminant_long = """\
disc_s_@discname@ = (gint32) s_octet4; /* save gint32 discriminant and cast to gint32 */
"""
template_union_code_save_discriminant_ulong = """\
disc_s_@discname@ = (gint32) u_octet4; /* save guint32 discriminant and cast to gint32 */
"""
template_union_code_save_discriminant_short = """\
disc_s_@discname@ = (gint32) s_octet2; /* save gint16 discriminant and cast to gint32 */
"""
template_union_code_save_discriminant_ushort = """\
disc_s_@discname@ = (gint32) u_octet2; /* save guint16 discriminant and cast to gint32 */
"""
template_union_code_save_discriminant_char = """\
disc_s_@discname@ = (gint32) u_octet1; /* save guint1 discriminant and cast to gint32 */
"""
template_union_code_save_discriminant_boolean = """\
disc_s_@discname@ = (gint32) u_octet1; /* save guint1 discriminant and cast to gint32 */
"""
template_comment_union_code_label_compare_start = """\
if (disc_s_@discname@ == @labelval@) {
"""
template_comment_union_code_label_compare_end = """\
return; /* End Compare for this discriminant type */
}
"""
template_comment_union_code_label_default_start = """
/* Default Union Case Start */
"""
template_comment_union_code_label_default_end = """\
/* Default Union Case End */
"""
#
# Templates for function prototypes.
# This is used in genDeclares() for declaring function prototypes
# for structs and union helper functions.
#
template_hf_operations = """
static int hf_operationrequest = -1;/* Request_Operation field */
"""
template_hf = """\
static int hf_@name@ = -1;"""
template_prototype_start_dissecting = """
static proto_tree *start_dissecting(tvbuff_t *tvb, packet_info *pinfo, proto_tree *ptree, int *offset);
"""
template_prototype_struct_start = """\
/* Struct prototype declaration Start */
"""
template_prototype_struct_end = """\
/* Struct prototype declaration End */
"""
template_prototype_struct_body = """\
/* Struct = @stname@ */
static void decode_@name@_st(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, proto_item *item _U_, int *offset _U_, MessageHeader *header _U_, const gchar *operation _U_, gboolean stream_is_big_endian _U_);
"""
template_decode_struct = """\
decode_@name@_st(tvb, pinfo, tree, item, offset, header, operation, stream_is_big_endian);"""
template_prototype_union_start = """\
/* Union prototype declaration Start */"""
template_prototype_union_end = """\
/* Union prototype declaration End */"""
template_prototype_union_body = """
/* Union = @unname@ */
static void decode_@name@_un(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, int *offset _U_, MessageHeader *header _U_, const gchar *operation _U_, gboolean stream_is_big_endian _U_);
"""
template_decode_union = """\
decode_@name@_un(tvb, pinfo, tree, offset, header, operation, stream_is_big_endian);
"""
#
# Editor modelines - http://www.wireshark.org/tools/modelines.html
#
# Local variables:
# c-basic-offset: 4
# indent-tabs-mode: nil
# End:
#
# vi: set shiftwidth=4 expandtab:
# :indentSize=4:noTabs=true:
#
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