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mirror of https://gitlab.com/libvirt/libvirt.git synced 2024-12-22 17:34:18 +03:00
libvirt/tools/wireshark
Pavel Hrdina e5c00317de wireshark: fix compilation errors
With meson introduction which is using the same CFLAGS for the whole
project some compilation errors were discovered. The wireshark plugin
library is the only one in tools directory that is not using AM_CFLAGS.

With the AM_CFLAGS we get these errors:

../../tools/wireshark/src/packet-libvirt.c: In function 'dissect_libvirt_fds':
../../tools/wireshark/src/packet-libvirt.c:348:31: error: unused parameter 'tvb' [-Werror=unused-parameter]
  348 | dissect_libvirt_fds(tvbuff_t *tvb, gint start, gint32 nfds)
      |                     ~~~~~~~~~~^~~
../../tools/wireshark/src/packet-libvirt.c:348:41: error: unused parameter 'start' [-Werror=unused-parameter]
  348 | dissect_libvirt_fds(tvbuff_t *tvb, gint start, gint32 nfds)
      |                                    ~~~~~^~~~~
../../tools/wireshark/src/packet-libvirt.c:348:55: error: unused parameter 'nfds' [-Werror=unused-parameter]
  348 | dissect_libvirt_fds(tvbuff_t *tvb, gint start, gint32 nfds)
      |                                                ~~~~~~~^~~~
At top level:
../../tools/wireshark/src/packet-libvirt.c:64:5: error: 'dissect_xdr_bool' defined but not used [-Werror=unused-function]
   64 |     dissect_xdr_##xtype(tvbuff_t *tvb, proto_tree *tree, XDR *xdrs, int hf) \
      |     ^~~~~~~~~~~~
../../tools/wireshark/src/packet-libvirt.c:88:1: note: in expansion of macro 'XDR_PRIMITIVE_DISSECTOR'
   88 | XDR_PRIMITIVE_DISSECTOR(bool,    bool_t,  boolean)
      | ^~~~~~~~~~~~~~~~~~~~~~~
../../tools/wireshark/src/packet-libvirt.c:64:5: error: 'dissect_xdr_float' defined but not used [-Werror=unused-function]
   64 |     dissect_xdr_##xtype(tvbuff_t *tvb, proto_tree *tree, XDR *xdrs, int hf) \
      |     ^~~~~~~~~~~~
../../tools/wireshark/src/packet-libvirt.c:86:1: note: in expansion of macro 'XDR_PRIMITIVE_DISSECTOR'
   86 | XDR_PRIMITIVE_DISSECTOR(float,   gfloat,  float)
      | ^~~~~~~~~~~~~~~~~~~~~~~
../../tools/wireshark/src/packet-libvirt.c:64:5: error: 'dissect_xdr_short' defined but not used [-Werror=unused-function]
   64 |     dissect_xdr_##xtype(tvbuff_t *tvb, proto_tree *tree, XDR *xdrs, int hf) \
      |     ^~~~~~~~~~~~
../../tools/wireshark/src/packet-libvirt.c:80:1: note: in expansion of macro 'XDR_PRIMITIVE_DISSECTOR'
   80 | XDR_PRIMITIVE_DISSECTOR(short,   gint16,  int)
      | ^~~~~~~~~~~~~~~~~~~~~~~
../../tools/wireshark/src/packet-libvirt.c: In function 'dissect_libvirt_message':
../../tools/wireshark/src/packet-libvirt.c:423:34: error: null pointer dereference [-Werror=null-dereference]
  423 |         vir_xdr_dissector_t xd = find_payload_dissector(proc, type, get_program_data(prog, VIR_PROGRAM_DISSECTORS),
      |                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  424 |                                                         *(gsize *)get_program_data(prog, VIR_PROGRAM_DISSECTORS_LEN));
      |                                                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-07-10 16:07:02 +02:00
..
samples Fix common misspellings 2015-03-23 09:01:30 +01:00
src wireshark: fix compilation errors 2020-07-10 16:07:02 +02:00
util tools: Keep wireshark plugin registration code in git 2019-02-12 09:22:59 +01:00
README.rst Convert all remaining Markdown files to reStructuredText 2020-04-14 16:29:04 +02:00

=====
About
=====

This is the project of Google Summer of Code 2013 accepted by QEMU.org and
libvirt community.  The goal of this project is, provide Wireshark dissector for
Libvirt RPC protocol. It will provide Libvirt packet overview/detail analysing
in Wireshark. Furthermore, it will be able to build(generated) from RPC protocol
definition placed in Libvirt source tree to support latest protocol
specification.

See also:

* http://www.google-melange.com/gsoc/project/google/gsoc2013/kawamuray/7001
* https://wiki.qemu.org/Features/LibvirtWiresharkDissector


Installation
=============

Run ``./configure`` with ``--with-wireshark-dissector`` option enabled.
Then dissector will compiled with libvirt itself.

Add/Remove protocol from dissector's support
--------------------------------------------

Modify variable ``WS_DISSECTOR_PROTO_FILES``
in ``tools/wireshark/src/Makefile.am``.

Changing installation directory
-------------------------------

You can change installation directory of pluggable shared
object(``libvirt.so``) by specifying ``--with-ws-plugindir=<path>``.

You can install ``libvirt.so`` into your local wireshark plugin directory:

::

  $ ./configure --with-wireshark-dissector \
                --with-ws-plugindir=$HOME/.wireshark/plugins