wireshark/epan/dissectors/pidl
Guy Harris e1d9a226a2 Fix the type of arrays of pointers to hf_ values for bitfield routines.
The static arrays are supposed to be arrays of const pointers to int,
not arrays of non-const pointers to const int.

Fixing that means some bugs (scribbling on what's *supposed* to be a
const array) will be caught (see packet-ieee80211-radiotap.c for
examples, the first of which inspired this change and the second of
which was discovered while testing compiles with this change), and
removes the need for some annoying casts.

Also make some of those arrays static while we're at it.

Update documentation and dissector-generator tools.

Change-Id: I789da5fc60aadc15797cefecfd9a9fbe9a130ccc
Reviewed-on: https://code.wireshark.org/review/37517
Petri-Dish: Guy Harris <gharris@sonic.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2020-06-19 11:32:26 +00:00
..
atsvc
clusapi
dfs
dnsserver
dssetup
efs
eventlog
frsrpc
frstrans
fsrvp
initshutdown
lsa
mapi
mdssvc
misc
nspi
rfr
samr
srvsvc
winreg
winspool
witness
wkssvc
wzcsvc
CMakeLists.txt
IDL_LICENSE.txt
Makefile.pidl
README
idl_types.h
mapicodes_enum.h
mapitags_enum.h

README

A note about PIDL generated files
=================================

Quick guide
===========

Run 'make -f Makefile.pidl all' inside the pidl folder to generate all the dissectors and place
them in the epan/dissectors folder.

Complete infos
==============

The following files:
../packet-dcerpc-atsvc.h
../packet-dcerpc-budb.c
../packet-dcerpc-budb.h
../packet-dcerpc-butc.c
../packet-dcerpc-butc.h
../packet-dcerpc-dfs.h
../packet-dcerpc-dnsserver.h
../packet-dcerpc-drsuapi.c
../packet-dcerpc-drsuapi.h
../packet-dcerpc-dssetup.h
../packet-dcerpc-efs.h
../packet-dcerpc-eventlog.h
../packet-dcerpc-frsrpc.h
../packet-dcerpc-frstrans.h
../packet-dcerpc-initshutdown.h
../packet-dcerpc-lsa.h
../packet-dcerpc-mapi.h
../packet-dcerpc-misc.h
../packet-dcerpc-nspi.h
../packet-dcerpc-rfr.h
../packet-dcerpc-samr.h
../packet-dcerpc-srvsvc.h
../packet-dcerpc-winreg.h
../packet-dcerpc-wkssvc.h
../packet-dcerpc-wzcsvc.h

are automatically generated via a tool called "pidl"; you shouldn't
modify them manually.

The pidl tool is maintained by the Samba project (http://samba.org,
samba-technical@samba.org).  We have a version in ../../../tools/pidl;
it currently differs from the Samba version only in its Wireshark-parser
generator, as we had to change it to reflect some API differences
between the current Wireshark release and the development trunk.

The Samba version can be fetched from their git tree:
    git clone git://git.samba.org/samba.git

Running pidl
============

You have to run the pidl command inside the pidl folder of the wireshark
source tree.

The command to compile file:
    ../../../tools/pidl/pidl --includedir . --ws-parser -- <idl-file>
                                                        ^^^
                                                        This is *VERY* important
The command generates 2 files:
    packet-dcerpc-<interfacename>.h
    packet-dcerpc-<interfacename>.c

For instance, with the atsvc.idl, the command will be:

        ../../../tools/pidl/pidl --includedir . --ws-parser -- atsvc.idl

This will generate 2 files:
    packet-dcerpc-atsvc.h
    packet-dcerpc-atsvc.c

If you run outside the dissectors/pidl directory, this *will* result in a
warning such as:

    atsvc.idl:5:23: idl_types.h: No such file or directory

and *may* result in additional warnings such as:

    Warning: No conformance file `initshutdown.cnf'
    Unable to handle string with flags STR_LEN4|STR_NOTERM at /usr/lib/perl5/site_perl/5.8.6/Parse/Pidl/Wireshark/NDR.pm line 283.

Notes about the in-tree pidl
============================

To allow building Wireshark pidl dissectors without having to
*explicitly* access a remote git repository, and to allow us to make
changes to the Wireshark parser generator that the Samba developers
might not want to make until a new major release of Wireshark comes out,
so as to allow users to build dissectors to run in the current Wireshark
release, a copy of pidl is located in tools/pidl.

Not compiling idl
=================
As of September 26, 2014, the following idl have issues when generating
and compiling:

pidl complains that inline arrays aren't supported for these:

	dnsserver.idl
	eventlog.idl

pidl generates possibly-incorrect code for these - this needs checking:

	rfr/rfr.idl

pidl rejects these with errors:

	srvsvc.idl
	wkssvc.cnf