--- /dev/null
+/* packet-rtp-events.c
+ *
+ * Routines for RFC 2833 RTP Events dissection
+ * Copyright 2003, Kevin A. Noll <knoll[AT]poss.com>
+ *
+ * $Id: packet-rtp-events.c,v 1.1 2003/09/19 04:16:23 guy Exp $
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ *
+ * 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.
+ */
+
+/*
+ * This dissector tries to dissect RTP Events.
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <glib.h>
+#include <epan/packet.h>
+#include "prefs.h"
+
+#include <stdio.h>
+#include <string.h>
+#include "packet-rtp-events.h"
+
+/* rtp_event_payload_type_value is the value used globally
+ to set the appropriate payload type
+ saved_pt_value is a temporary place to save the value
+ so we can properly reinitialize when the settings
+ get changed
+*/
+static guint rtp_event_payload_type_value = 101;
+static guint saved_payload_type_value;
+
+
+/* RTP Event Fields */
+
+static int proto_rtp_events = -1;
+
+static int hf_rtp_events_event = -1; /* one byte */
+static int hf_rtp_events_end = -1; /* one bit */
+static int hf_rtp_events_reserved = -1; /* one bit */
+static int hf_rtp_events_volume = -1; /* six bits */
+static int hf_rtp_events_duration = -1; /* sixteen bits */
+
+
+/* RTP Events fields defining a subtree */
+
+static gint ett_rtp_events = -1;
+
+void
+proto_reg_handoff_rtp_events(void);
+
+static void
+dissect_rtp_events( tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree )
+{
+ proto_item *ti = NULL;
+ proto_tree *rtp_events_tree = NULL;
+ unsigned int offset = 0;
+
+ guint8 octet;
+
+ guint8 rtp_evt;
+ gboolean rtp_end;
+ gboolean rtp_reserved;
+ guint8 rtp_volume;
+ guint16 rtp_duration;
+
+
+ if ( check_col( pinfo->cinfo, COL_PROTOCOL ) )
+ {
+ col_set_str( pinfo->cinfo, COL_PROTOCOL, "RTP EVENT" );
+ }
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_clear(pinfo->cinfo, COL_INFO);
+
+
+ /* Get event fields */
+
+ rtp_evt = tvb_get_guint8(tvb, offset );
+
+ octet = tvb_get_guint8(tvb, offset +1 );
+
+ rtp_volume = ((octet << 2) >> 2);
+
+ rtp_end = (octet >> 7);
+ rtp_reserved = ((octet << 1) >> 7 );
+
+ rtp_duration = tvb_get_ntohs(tvb, offset +2);
+
+
+ if ( check_col( pinfo->cinfo, COL_INFO) )
+ {
+ col_add_fstr( pinfo->cinfo, COL_INFO,
+ "Payload type=RTP Event, %s",
+ val_to_str( rtp_evt, rtp_event_type_values, "Unknown (%u)" ));
+
+
+ }
+
+
+ if ( tree )
+ {
+ ti = proto_tree_add_item( tree, proto_rtp_events, tvb, offset, -1, FALSE );
+ rtp_events_tree = proto_item_add_subtree( ti, ett_rtp_events );
+
+ proto_tree_add_uint ( rtp_events_tree, hf_rtp_events_event, tvb, offset, 1, rtp_evt);
+ proto_tree_add_boolean (rtp_events_tree, hf_rtp_events_end, tvb, offset, 1, rtp_end);
+ proto_tree_add_boolean (rtp_events_tree, hf_rtp_events_reserved, tvb, offset, 1, rtp_reserved);
+ proto_tree_add_uint ( rtp_events_tree, hf_rtp_events_volume, tvb, offset, 1, rtp_volume);
+ proto_tree_add_uint ( rtp_events_tree, hf_rtp_events_duration, tvb, offset, 2, rtp_duration);
+ }
+}
+
+
+void
+proto_register_rtp_events(void)
+{
+
+ module_t *rtp_events_module;
+
+ static hf_register_info hf[] =
+ {
+ {
+ &hf_rtp_events_event,
+ {
+ "Event ID",
+ "rtp.payload_rtp_events_event",
+ FT_UINT8,
+ BASE_DEC,
+ VALS(rtp_event_type_values),
+ 0x0,
+ "", HFILL
+ }
+ },
+ {
+ &hf_rtp_events_end,
+ {
+ "End of Event",
+ "rtp.payload_rtp_events_end",
+ FT_BOOLEAN,
+ BASE_DEC,
+ NULL,
+ 0x0,
+ "", HFILL
+ }
+ },
+ {
+ &hf_rtp_events_reserved,
+ {
+ "Reserved",
+ "rtp.payload_rtp_events_reserved",
+ FT_BOOLEAN,
+ BASE_DEC,
+ NULL,
+ 0x0,
+ "", HFILL
+ }
+ },
+ {
+ &hf_rtp_events_volume,
+ {
+ "Volume",
+ "rtp.payload_rtp_events_volume",
+ FT_UINT8,
+ BASE_DEC,
+ NULL,
+ 0x0,
+ "", HFILL
+ }
+ },
+
+ {
+ &hf_rtp_events_duration,
+ {
+ "Event Duration",
+ "rtp.payload_rtp_events_duration",
+ FT_UINT16,
+ BASE_DEC,
+ NULL,
+ 0x0,
+ "", HFILL
+ }
+ },
+
+ };
+
+ static gint *ett[] =
+ {
+ &ett_rtp_events,
+ };
+
+
+ proto_rtp_events = proto_register_protocol("RFC 2833 RTP Event", "RTP Event", "rtpevent");
+ proto_register_field_array(proto_rtp_events, hf, array_length(hf));
+ proto_register_subtree_array(ett, array_length(ett));
+
+
+ /* Register preferences */
+ rtp_events_module = prefs_register_protocol (proto_rtp_events, proto_reg_handoff_rtp_events);
+ prefs_register_uint_preference (rtp_events_module,
+ "event_payload_type_value", "Payload Type for RFC2833 RTP Events",
+ "This is the value of the Payload Type field"
+ "that specifies RTP Events", 10,
+ &rtp_event_payload_type_value);
+}
+
+
+
+void
+proto_reg_handoff_rtp_events(void)
+{
+ static dissector_handle_t rtp_events_handle;
+ static int rtp_events_prefs_initialized = FALSE;
+
+ if (!rtp_events_prefs_initialized) {
+ rtp_events_handle = create_dissector_handle(dissect_rtp_events, proto_rtp_events);
+ rtp_events_prefs_initialized = TRUE;
+ }
+ else {
+ dissector_delete("rtp.pt", saved_payload_type_value, rtp_events_handle);
+ }
+
+ saved_payload_type_value = rtp_event_payload_type_value;
+ /* rtp_event_payload_type_value is set from preferences */
+
+ dissector_add("rtp.pt", saved_payload_type_value, rtp_events_handle);
+
+}
--- /dev/null
+/* packet-rtp-events.h
+ *
+ * Defines for RFC 2833 RTP Events dissection
+ * Copyright 2003, Kevin A. Noll <knoll[AT]poss.com>
+ *
+ * $Id: packet-rtp-events.h,v 1.1 2003/09/19 04:16:23 guy Exp $
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ *
+ * 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.
+ */
+
+
+#define RTP_DTMF_0 0
+#define RTP_DTMF_1 1
+#define RTP_DTMF_2 2
+#define RTP_DTMF_3 3
+#define RTP_DTMF_4 4
+#define RTP_DTMF_5 5
+#define RTP_DTMF_6 6
+#define RTP_DTMF_7 7
+#define RTP_DTMF_8 8
+#define RTP_DTMF_9 9
+#define RTP_DTMF_STAR 10
+#define RTP_DTMF_POUND 11
+#define RTP_DTMF_A 12
+#define RTP_DTMF_B 13
+#define RTP_DTMF_C 14
+#define RTP_DTMF_D 15
+#define RTP_DTMF_FLASH 16
+
+#define RTP_ANS 32
+#define RTP_ANSREV 33
+#define RTP_ANSAM 34
+#define RTP_ANSAMREV 35
+#define RTP_CNG 36
+#define RTP_V21C1B0 37
+#define RTP_V21C1B1 38
+#define RTP_V21C2B0 39
+#define RTP_V21C2B1 40
+#define RTP_CRDI 41
+#define RTP_CRDR 42
+#define RTP_CRE 43
+#define RTP_ESI 44
+#define RTP_ESR 45
+#define RTP_MRDI 46
+#define RTP_MRDR 47
+#define RTP_MRE 48
+#define RTP_CT 49
+
+#define RTP_OFFHOOK 64
+#define RTP_ONHOOK 65
+#define RTP_DIALTONE 66
+#define RTP_INTDT 67
+#define RTP_SPCDT 68
+#define RTP_2NDDT 69
+#define RTP_RGTONE 70
+#define RTP_SPRGTONE 71
+#define RTP_BUSYTONE 72
+#define RTP_CNGTONE 73
+#define RTP_SPINFOTN 74
+#define RTP_CMFTTONE 75
+#define RTP_HOLDTONE 76
+#define RTP_RECTONE 77
+#define RTP_CLRWTTONE 78
+#define RTP_CWTONE 79
+#define RTP_PAYTONE 80
+#define RTP_POSINDTONE 81
+#define RTP_NEGINDTONE 82
+#define RTP_WARNTONE 83
+#define RTP_INTRTONE 84
+#define RTP_CALLCDTONE 85
+#define RTP_PAYPHONE 86
+#define RTP_CAS 87
+#define RTP_OFFHKWARN 88
+#define RTP_RING 89
+
+#define RTP_ACCPTTONE 96
+#define RTP_CONFIRMTN 97
+#define RTP_DLTNRECALL 98
+#define RTP_END3WAYTN 99
+#define RTP_FACTONE 100
+#define RTP_LNLOCKTN 101
+#define RTP_NUMUNOBT 102
+#define RTP_OFFERGTONE 103
+#define RTP_PERMSIGTN 104
+#define RTP_PREEMPTTN 105
+#define RTP_QUETONE 106
+#define RTP_REFUSALTN 107
+#define RTP_ROUTETONE 108
+#define RTP_VALIDTONE 109
+#define RTP_WAITGTONE 110
+#define RTP_WARNEOPTN 111
+#define RTP_WARNPIPTN 112
+
+#define RTP_MF0 128
+#define RTP_MF1 129
+#define RTP_MF2 130
+#define RTP_MF3 131
+#define RTP_MF4 132
+#define RTP_MF5 133
+#define RTP_MF6 134
+#define RTP_MF7 135
+#define RTP_MF8 136
+#define RTP_MF9 137
+#define RTP_K0 138
+#define RTP_K1 139
+#define RTP_K2 140
+#define RTP_S0 141
+#define RTP_S1 142
+#define RTP_S3 143
+
+#define RTP_WINK 160
+#define RTP_WINKOFF 161
+#define RTP_INCSEIZ 162
+#define RTP_SEIZURE 163
+#define RTP_UNSEIZE 164
+#define RTP_COT 165
+#define RTP_DEFCOT 166
+#define RTP_COTTONE 167
+#define RTP_COTSEND 168
+
+#define RTP_COTVERFD 170
+#define RTP_LOOPBACK 171
+#define RTP_MWATTTONE 172
+#define RTP_NEWMWATTTN 173
+
+static const value_string rtp_event_type_values[] =
+{
+
+ { RTP_DTMF_0, "DTMF Zero 0" },
+ { RTP_DTMF_1, "DTMF One 1" },
+ { RTP_DTMF_2, "DTMF Two 2" },
+ { RTP_DTMF_3, "DTMF Three 3" },
+ { RTP_DTMF_4, "DTMF Four 4" },
+ { RTP_DTMF_5, "DTMF Five 5" },
+ { RTP_DTMF_6, "DTMF Six 6" },
+ { RTP_DTMF_7, "DTMF Seven 7" },
+ { RTP_DTMF_8, "DTMF Eight 8" },
+ { RTP_DTMF_9, "DTMF Nine 9" },
+ { RTP_DTMF_STAR, "DTMF Star *" },
+ { RTP_DTMF_POUND, "DTMF Pound #" },
+ { RTP_DTMF_A, "DTMF A" },
+ { RTP_DTMF_B, "DTMF B" },
+ { RTP_DTMF_C, "DTMF C" },
+ { RTP_DTMF_D, "DTMF D" },
+ { RTP_DTMF_FLASH, "Flash" },
+ { RTP_ANS, "Fax ANS"},
+ { RTP_ANSREV, "Fax /ANS"},
+ { RTP_ANSAM, "Fax ANSam"},
+ { RTP_ANSAMREV, "Fax /ANSam"},
+ { RTP_CNG, "Fax CNG"},
+ { RTP_V21C1B0, "V.21 channel 1, 0 bit"},
+ { RTP_V21C1B1, "V.21 channel 1, 1 bit"},
+ { RTP_V21C2B0, "V.21 channel 2, 0 bit"},
+ { RTP_V21C2B1, "V.21 channel 2, 1 bit"},
+ { RTP_CRDI, "Fax CRdi"},
+ { RTP_CRDR, "Fax CRdr"},
+ { RTP_CRE, "Fax CRe"},
+ { RTP_ESI, "Fax ESi"},
+ { RTP_ESR, "Fax ESr"},
+ { RTP_MRDI, "Fax MRdi"},
+ { RTP_MRDR, "Fax MRdr"},
+ { RTP_MRE, "Fax MRe"},
+ { RTP_CT, "Fax CT"},
+ { RTP_OFFHOOK, "Off Hook"},
+ { RTP_ONHOOK, "On Hook"},
+ { RTP_DIALTONE, "Dial tone"},
+ { RTP_INTDT, "PABX internal dial tone"},
+ { RTP_SPCDT, "Special dial tone"},
+ { RTP_2NDDT, "Second dial tone"},
+ { RTP_RGTONE, "Ringing tone"},
+ { RTP_SPRGTONE, "Special ringing tone"},
+ { RTP_BUSYTONE, "Busy tone"},
+ { RTP_CNGTONE, "Congestion tone"},
+ { RTP_SPINFOTN, "Special information tone"},
+ { RTP_CMFTTONE, "Comfort tone"},
+ { RTP_HOLDTONE, "Hold tone"},
+ { RTP_RECTONE, "Record tone"},
+ { RTP_CLRWTTONE, "Caller waiting tone"},
+ { RTP_CWTONE, "Call waiting tone"},
+ { RTP_PAYTONE, "Pay tone"},
+ { RTP_POSINDTONE, "Positive indication tone"},
+ { RTP_NEGINDTONE, "Negative indication tone"},
+ { RTP_WARNTONE, "Warning tone"},
+ { RTP_INTRTONE, "Intrusion tone"},
+ { RTP_CALLCDTONE, "Calling card service tone"},
+ { RTP_PAYPHONE, "Payphone recognition tone"},
+ { RTP_CAS, "CPE alerting signal (CAS)"},
+ { RTP_OFFHKWARN, "Off-hook warning tone"},
+ { RTP_RING, "Ring"},
+ { RTP_ACCPTTONE, "Acceptance tone"},
+ { RTP_CONFIRMTN, "Confirmation tone"},
+ { RTP_DLTNRECALL, "Dial tone, recall"},
+ { RTP_END3WAYTN, "End of three party service tone"},
+ { RTP_FACTONE, "Facilities tone"},
+ { RTP_LNLOCKTN, "Line lockout tone"},
+ { RTP_NUMUNOBT, "Number unobtainable tone"},
+ { RTP_OFFERGTONE, "Offering tone"},
+ { RTP_PERMSIGTN, "Permanent signal tone"},
+ { RTP_PREEMPTTN, "Preemption tone"},
+ { RTP_QUETONE, "Queue tone"},
+ { RTP_REFUSALTN, "Refusal tone"},
+ { RTP_ROUTETONE, "Route tone"},
+ { RTP_VALIDTONE, "Valid tone"},
+ { RTP_WAITGTONE, "Waiting tone"},
+ { RTP_WARNEOPTN, "Warning tone (end of period)"},
+ { RTP_WARNPIPTN, "Warning Tone (PIP tone)"},
+ { RTP_MF0, "MF 0"},
+ { RTP_MF1, "MF 1"},
+ { RTP_MF2, "MF 2"},
+ { RTP_MF3, "MF 3"},
+ { RTP_MF4, "MF 4"},
+ { RTP_MF5, "MF 5"},
+ { RTP_MF6, "MF 6"},
+ { RTP_MF7, "MF 7"},
+ { RTP_MF8, "MF 8"},
+ { RTP_MF9, "MF 9"},
+ { RTP_K0, "MF K0 or KP (start-of-pulsing)"},
+ { RTP_K1, "MF K1"},
+ { RTP_K2, "MF K2"},
+ { RTP_S0, "MF S0 to ST (end-of-pulsing)"},
+ { RTP_S1, "MF S1"},
+ { RTP_S3, "MF S3"},
+ { RTP_WINK, "Wink"},
+ { RTP_WINKOFF, "Wink off"},
+ { RTP_INCSEIZ, "Incoming seizure"},
+ { RTP_SEIZURE, "Seizure"},
+ { RTP_UNSEIZE, "Unseize circuit"},
+ { RTP_COT, "Continuity test"},
+ { RTP_DEFCOT, "Default continuity tone"},
+ { RTP_COTTONE, "Continuity tone (single tone)"},
+ { RTP_COTSEND, "Continuity test send"},
+ { RTP_COTVERFD, "Continuity verified"},
+ { RTP_LOOPBACK, "Loopback"},
+ { RTP_MWATTTONE, "Old milliwatt tone (1000 Hz)"},
+ { RTP_NEWMWATTTN, "New milliwatt tone (1004 Hz)"},
+ { 0, NULL },
+};
git.samba.org / obnox / wireshark / wip.git / commitdiff