forked from osmocom/wireshark
61 lines
2.0 KiB
C
61 lines
2.0 KiB
C
/* packet-sdp.h
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* Routines for SDP packet disassembly (RFC 2327)
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*
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* Jason Lango <jal@netapp.com>
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* Liberally copied from packet-http.c, by Guy Harris <guy@alum.mit.edu>
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* 2005 Alejandro Vaquero <alejandro.vaquero@verso.com>, add support for tap
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef __PACKET_SDP_H__
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#define __PACKET_SDP_H__
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typedef struct _sdp_packet_info {
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gchar summary_str[50]; /* SDP summary string for VoIP calls graph analysis */
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} sdp_packet_info;
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enum sdp_exchange_type
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{
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SDP_EXCHANGE_OFFER = 0,
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SDP_EXCHANGE_ANSWER_ACCEPT,
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SDP_EXCHANGE_ANSWER_REJECT
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};
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enum sdp_trace_id_hf_type
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{
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SDP_TRACE_ID_HF_TYPE_STR = 0, /* */
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SDP_TRACE_ID_HF_TYPE_GUINT32 /* */
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};
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/*
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* Information needed to set up a trace id in RTP(t ex SIP CallId )
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*/
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#define SDP_INFO_OFFSET 10 /* Max number of SDP data occurensies in a single frame */
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typedef struct _sdp_conv_info {
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wmem_array_t *sdp_setup_info_list;
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} sdp_conv_info_t;
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typedef struct _sdp_setup_info {
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int hf_id; /* Header field to use */
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enum sdp_trace_id_hf_type hf_type; /* Indicates which of the following variables to use( add guint32 etc as needed)*/
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gboolean add_hidden;
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union {
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gchar *str; /* The trace id if the hf_type is str */
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guint32 num; /* Numerical trace id */
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} trace_id;
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} sdp_setup_info_t;
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extern void setup_sdp_transport(tvbuff_t *tvb, packet_info *pinfo, enum sdp_exchange_type type, int request_frame, const gboolean delay, sdp_setup_info_t *setup_info);
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/* Handles duplicate OFFER packets so they don't end up processed by dissect_sdp(). This can probably
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* be removed when all higher layer dissectors properly handle SDP themselves with setup_sdp_transport()
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*/
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extern void setup_sdp_transport_resend(int current_frame, int request_frame);
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#endif /* __PACKET_SDP_H__ */
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