Hi everyone,
I seem to have a little problem with calling proto_tree_add_item. On some
packets,
when I click on the entry to expand the tree, Wireshark crashes. If I don't
insert
those add_items, everything is fine...
Some sniplets of the code are below.
Has anyone possibly got any insights what I am doing wrong?
Best regards,
Tobias
#define RTP_MIDI_CS_FLAG_B 0x80
#define RTP_MIDI_CS_FLAG_J 0x40
#define RTP_MIDI_CS_FLAG_Z 0x20
#define RTP_MIDI_CS_FLAG_P 0x10
static int hf_rtp_midi_bflag = -1;
static int hf_rtp_midi_jflag = -1;
static int hf_rtp_midi_zflag = -1;
static int hf_rtp_midi_pflag = -1;
static const value_string rtp_midi_cs_flag_b[] =
{
{ 0,"Short Header: 1 octet" },
{ 1,"Long Header: 2 octets" },
{ 0,NULL },
};
static const value_string rtp_midi_cs_flag_j[] =
{
{ 0,"No Journal present" },
{ 1,"Journal present" },
{ 0,NULL },
};
static const value_string rtp_midi_cs_flag_z[] =
{
{ 0,"No Delta-Time for first MIDI-command" },
{ 1,"Delta-Time present for first MIDI-command" },
{ 0,NULL },
};
static const value_string rtp_midi_cs_flag_p[] =
{
{ 0,"Status byte was present in original MIDI-command" },
{ 1,"Status byte was NOT present in original MIDI-command" },
{ 0,NULL },
};
static hf_register_info hf[] = {
{
&hf_rtp_midi_bflag,
{
"B-Flag",
"rtpmidi.b_flag",
FT_BOOLEAN,
8,
VALS(rtp_midi_cs_flag_b),
RTP_MIDI_CS_FLAG_B,
"", HFILL
}
},
{
&hf_rtp_midi_jflag,
{
"J-Flag",
"rtpmidi.j_flag",
FT_BOOLEAN,
8,
VALS(rtp_midi_cs_flag_j),
RTP_MIDI_CS_FLAG_J,
"", HFILL
}
},
{
&hf_rtp_midi_zflag,
{
"Z-Flag",
"rtpmidi.z_flag",
FT_BOOLEAN,
8,
VALS(rtp_midi_cs_flag_z),
RTP_MIDI_CS_FLAG_Z,
"", HFILL
}
},
{
&hf_rtp_midi_pflag,
{
"P-Flag",
"rtpmidi.p_flag",
FT_BOOLEAN,
8,
VALS(rtp_midi_cs_flag_p),
RTP_MIDI_CS_FLAG_P,
"", HFILL
}
},
};
/* Decode those four flags */
proto_tree_add_item ( rtp_midi_tree, hf_rtp_midi_bflag, tvb, offset, 1, 0 );
/* if I return here, no problems... if I add next line -> Wireshark crashes...
*/
proto_tree_add_item ( rtp_midi_tree, hf_rtp_midi_jflag, tvb, offset, 1, 0 );
proto_tree_add_item ( rtp_midi_tree, hf_rtp_midi_zflag, tvb, offset, 1, 0 );
proto_tree_add_item ( rtp_midi_tree, hf_rtp_midi_pflag, tvb, offset, 1, 0 );
--
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