5314 lines
174 KiB
C
5314 lines
174 KiB
C
/* packet-sip.c
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* Routines for the Session Initiation Protocol (SIP) dissection.
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* RFCs 3261-3264
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*
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* TODO:
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* hf_ display filters for headers of SIP extension RFCs (ongoing)
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*
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* Copyright 2000, Heikki Vatiainen <hessu@cs.tut.fi>
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* Copyright 2001, Jean-Francois Mule <jfm@cablelabs.com>
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* Copyright 2004, Anders Broman <anders.broman@ericsson.com>
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* Copyright 2011, Anders Broman <anders.broman@ericsson.com>, Johan Wahl <johan.wahl@ericsson.com>
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*
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* $Id$
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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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* Copied from packet-cops.c
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <ctype.h>
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/prefs.h>
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#include <epan/req_resp_hdrs.h>
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#include <epan/emem.h>
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#include <epan/strutil.h>
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#include <epan/tap.h>
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#include <epan/exported_pdu.h>
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#include <epan/expert.h>
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#include <wsutil/str_util.h>
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#include "packet-tcp.h"
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#include "packet-ssl.h"
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#include "packet-isup.h"
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#include "packet-sip.h"
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#include "packet-sdp.h" /* SDP needs a transport layer to determine request/response */
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#define TCP_PORT_SIP 5060
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#define UDP_PORT_SIP 5060
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#define TLS_PORT_SIP 5061
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#define DEFAULT_SIP_PORT_RANGE "5060"
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static dissector_handle_t sip_tcp_handle;
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static gint sip_tap = -1;
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static gint exported_pdu_tap = -1;
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static dissector_handle_t sigcomp_handle;
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static dissector_handle_t sip_diag_handle;
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/* Initialize the protocol and registered fields */
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static gint proto_sip = -1;
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static gint proto_raw_sip = -1;
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static gint hf_sip_raw_line = -1;
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static gint hf_sip_msg_hdr = -1;
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static gint hf_sip_Method = -1;
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static gint hf_Request_Line = -1;
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static gint hf_sip_ruri = -1;
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static gint hf_sip_ruri_user = -1;
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static gint hf_sip_ruri_host = -1;
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static gint hf_sip_ruri_port = -1;
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static gint hf_sip_ruri_param = -1;
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static gint hf_sip_Status_Code = -1;
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static gint hf_sip_Status_Line = -1;
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static gint hf_sip_display = -1;
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static gint hf_sip_to_addr = -1;
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static gint hf_sip_to_user = -1;
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static gint hf_sip_to_host = -1;
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static gint hf_sip_to_port = -1;
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static gint hf_sip_to_param = -1;
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static gint hf_sip_to_tag = -1;
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static gint hf_sip_from_addr = -1;
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static gint hf_sip_from_user = -1;
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static gint hf_sip_from_host = -1;
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static gint hf_sip_from_port = -1;
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static gint hf_sip_from_param = -1;
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static gint hf_sip_from_tag = -1;
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static gint hf_sip_tag = -1;
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static gint hf_sip_pai_addr = -1;
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static gint hf_sip_pai_user = -1;
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static gint hf_sip_pai_host = -1;
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static gint hf_sip_pai_port = -1;
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static gint hf_sip_pai_param = -1;
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static gint hf_sip_pmiss_addr = -1;
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static gint hf_sip_pmiss_user = -1;
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static gint hf_sip_pmiss_host = -1;
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static gint hf_sip_pmiss_port = -1;
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static gint hf_sip_pmiss_param = -1;
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static gint hf_sip_ppi_addr = -1;
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static gint hf_sip_ppi_user = -1;
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static gint hf_sip_ppi_host = -1;
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static gint hf_sip_ppi_port = -1;
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static gint hf_sip_ppi_param = -1;
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static gint hf_sip_tc_addr = -1;
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static gint hf_sip_tc_user = -1;
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static gint hf_sip_tc_host = -1;
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static gint hf_sip_tc_port = -1;
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static gint hf_sip_tc_param = -1;
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static gint hf_sip_tc_turi = -1;
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static gint hf_sip_contact_param = -1;
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static gint hf_sip_resend = -1;
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static gint hf_sip_original_frame = -1;
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static gint hf_sip_matching_request_frame = -1;
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static gint hf_sip_response_time = -1;
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static gint hf_sip_release_time = -1;
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static gint hf_sip_curi = -1;
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static gint hf_sip_curi_user = -1;
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static gint hf_sip_curi_host = -1;
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static gint hf_sip_curi_port = -1;
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static gint hf_sip_curi_param = -1;
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static gint hf_sip_route = -1;
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static gint hf_sip_route_user = -1;
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static gint hf_sip_route_host = -1;
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static gint hf_sip_route_port = -1;
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static gint hf_sip_route_param = -1;
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static gint hf_sip_record_route = -1;
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static gint hf_sip_record_route_user = -1;
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static gint hf_sip_record_route_host = -1;
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static gint hf_sip_record_route_port = -1;
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static gint hf_sip_record_route_param = -1;
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static gint hf_sip_auth = -1;
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static gint hf_sip_auth_scheme = -1;
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static gint hf_sip_auth_digest_response = -1;
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static gint hf_sip_auth_nc = -1;
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static gint hf_sip_auth_username = -1;
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static gint hf_sip_auth_realm = -1;
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static gint hf_sip_auth_nonce = -1;
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static gint hf_sip_auth_algorithm = -1;
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static gint hf_sip_auth_opaque = -1;
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static gint hf_sip_auth_qop = -1;
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static gint hf_sip_auth_cnonce = -1;
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static gint hf_sip_auth_uri = -1;
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static gint hf_sip_auth_domain = -1;
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static gint hf_sip_auth_stale = -1;
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static gint hf_sip_auth_auts = -1;
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static gint hf_sip_auth_rspauth = -1;
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static gint hf_sip_auth_nextnonce = -1;
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static gint hf_sip_auth_ik = -1;
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static gint hf_sip_auth_ck = -1;
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static gint hf_sip_cseq_seq_no = -1;
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static gint hf_sip_cseq_method = -1;
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static gint hf_sip_via_transport = -1;
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static gint hf_sip_via_sent_by_address = -1;
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static gint hf_sip_via_sent_by_port = -1;
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static gint hf_sip_via_branch = -1;
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static gint hf_sip_via_maddr = -1;
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static gint hf_sip_via_rport = -1;
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static gint hf_sip_via_received = -1;
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static gint hf_sip_via_ttl = -1;
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static gint hf_sip_via_comp = -1;
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static gint hf_sip_via_sigcomp_id = -1;
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static gint hf_sip_rack_rseq_no = -1;
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static gint hf_sip_rack_cseq_no = -1;
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static gint hf_sip_rack_cseq_method = -1;
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static gint hf_sip_msg_body = -1;
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/* Initialize the subtree pointers */
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static gint ett_sip = -1;
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static gint ett_sip_reqresp = -1;
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static gint ett_sip_hdr = -1;
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static gint ett_sip_ext_hdr = -1;
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static gint ett_raw_text = -1;
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static gint ett_sip_element = -1;
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static gint ett_sip_hist = -1;
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static gint ett_sip_uri = -1;
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static gint ett_sip_contact_item = -1;
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static gint ett_sip_message_body = -1;
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static gint ett_sip_cseq = -1;
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static gint ett_sip_via = -1;
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static gint ett_sip_reason = -1;
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static gint ett_sip_rack = -1;
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static gint ett_sip_route = -1;
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static gint ett_sip_record_route = -1;
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static gint ett_sip_ruri = -1;
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static gint ett_sip_to_uri = -1;
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static gint ett_sip_curi = -1;
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static gint ett_sip_from_uri = -1;
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static gint ett_sip_pai_uri = -1;
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static gint ett_sip_pmiss_uri = -1;
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static gint ett_sip_ppi_uri = -1;
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static gint ett_sip_tc_uri = -1;
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/* PUBLISH method added as per http://www.ietf.org/internet-drafts/draft-ietf-sip-publish-01.txt */
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static const char *sip_methods[] = {
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#define SIP_METHOD_INVALID 0
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"<Invalid method>", /* Pad so that the real methods start at index 1 */
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#define SIP_METHOD_ACK 1
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"ACK",
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#define SIP_METHOD_BYE 2
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"BYE",
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#define SIP_METHOD_CANCEL 3
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"CANCEL",
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#define SIP_METHOD_DO 4
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"DO",
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#define SIP_METHOD_INFO 5
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"INFO",
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#define SIP_METHOD_INVITE 6
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"INVITE",
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#define SIP_METHOD_MESSAGE 7
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"MESSAGE",
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#define SIP_METHOD_NOTIFY 8
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"NOTIFY",
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#define SIP_METHOD_OPTIONS 9
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"OPTIONS",
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#define SIP_METHOD_PRACK 10
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"PRACK",
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#define SIP_METHOD_QAUTH 11
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"QAUTH",
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#define SIP_METHOD_REFER 12
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"REFER",
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#define SIP_METHOD_REGISTER 13
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"REGISTER",
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#define SIP_METHOD_SPRACK 14
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"SPRACK",
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#define SIP_METHOD_SUBSCRIBE 15
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"SUBSCRIBE",
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#define SIP_METHOD_UPDATE 16
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"UPDATE",
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#define SIP_METHOD_PUBLISH 17
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"PUBLISH"
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};
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/* from RFC 3261
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* Updated with info from http://www.iana.org/assignments/sip-parameters
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* (last updated 2009-11-11)
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* Updated with: http://www.ietf.org/internet-drafts/draft-ietf-sip-resource-priority-05.txt
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*/
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typedef struct {
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const char *name;
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const char *compact_name;
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} sip_header_t;
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static const sip_header_t sip_headers[] = {
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{ "Unknown-header", NULL }, /* 0 Pad so that the real headers start at index 1 */
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{ "Accept", NULL }, /* 1 */
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#define POS_ACCEPT 1
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{ "Accept-Contact", "a" }, /* 2 RFC3841 */
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#define POS_ACCEPT_CONTACT 2
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{ "Accept-Encoding", NULL }, /* 3 */
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#define POS_ACCEPT_ENCODING 3
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{ "Accept-Language", NULL }, /* 4 */
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#define POS_ACCEPT_LANGUAGE 4
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{ "Accept-Resource-Priority", NULL }, /* 5 RFC4412 */
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#define POS_ACCEPT_RESOURCE_PRIORITY 5
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{ "Alert-Info", NULL },
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#define POS_ALERT_INFO 6
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{ "Allow", NULL },
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#define POS_ALLOW 7
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{ "Allow-Events", "u" }, /* 8 RFC3265 */
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#define POS_ALLOW_EVENTS 8
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{ "Answer-Mode", NULL }, /* 9 RFC5373 */
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#define POS_ANSWER_MODE 9
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{ "Authentication-Info", NULL },
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#define POS_AUTHENTICATION_INFO 10
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{ "Authorization", NULL }, /* 11 */
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#define POS_AUTHORIZATION 11
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{ "Call-ID", "i" },
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#define POS_CALL_ID 12
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{ "Call-Info", NULL },
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#define POS_CALL_INFO 13
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{ "Contact", "m" },
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#define POS_CONTACT 14
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{ "Content-Disposition", NULL },
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#define POS_CONTENT_DISPOSITION 15
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{ "Content-Encoding", "e" }, /* 16 */
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#define POS_CONTENT_ENCODING 16
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{ "Content-Language", NULL },
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#define POS_CONTENT_LANGUAGE 17
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{ "Content-Length", "l" },
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#define POS_CONTENT_LENGTH 18
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{ "Content-Type", "c" },
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#define POS_CONTENT_TYPE 19
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{ "CSeq", NULL },
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#define POS_CSEQ 20
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{ "Date", NULL }, /* 21 */
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#define POS_DATE 21
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/* Encryption (Deprecated) [RFC3261] */
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{ "Error-Info", NULL }, /* 22 */
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#define POS_ERROR_INFO 22
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{ "Event", "o" }, /* 23 */
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#define POS_EVENT 23
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{ "Expires", NULL }, /* 24 */
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#define POS_EXPIRES 24
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{ "Feature-Caps", NULL }, /* 25 [RFC6809 */
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#define POS_FEATURE_CAPS 25
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{ "Flow-Timer", NULL }, /* 26 RFC5626 */
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#define POS_FLOW_TIMER 26
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{ "From", "f" }, /* 27 */
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#define POS_FROM 27
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{ "Geolocation", NULL }, /* 28 */
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#define POS_GEOLOCATION 28
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{ "Geolocation-Error", NULL }, /* 29 */
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#define POS_GEOLOCATION_ERROR 29
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{ "Geolocation-Routing", NULL }, /* 30 */
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#define POS_GEOLOCATION_ROUTING 30
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/* Hide [RFC3261] (deprecated)*/
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{ "History-Info", NULL }, /* 31 RFC4244 */
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#define POS_HISTORY_INFO 31
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{ "Identity", "y" }, /* 32 RFC4474 */
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#define POS_IDENTITY 32
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{ "Identity-Info", "n" }, /* 33 RFC4474 */
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#define POS_IDENTITY_INFO 33
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{ "Info-Package", NULL }, /* 34 RFC-ietf-sipcore-info-events-10.txt */
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#define POS_INFO_PKG 34
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{ "In-Reply-To", NULL }, /* 35 RFC3261 */
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#define POS_IN_REPLY_TO 35
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{ "Join", NULL }, /* 36 RFC3911 */
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#define POS_JOIN 36
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{ "Max-Breadth", NULL }, /* 37 RFC5393*/
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#define POS_MAX_BREADTH 37
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{ "Max-Forwards", NULL }, /* 38 */
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#define POS_MAX_FORWARDS 38
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{ "MIME-Version", NULL }, /* 39 */
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#define POS_MIME_VERSION 39
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{ "Min-Expires", NULL }, /* 40 */
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#define POS_MIN_EXPIRES 40
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{ "Min-SE", NULL }, /* 41 RFC4028 */
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#define POS_MIN_SE 41
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{ "Organization", NULL }, /* 42 RFC3261 */
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#define POS_ORGANIZATION 42
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{ "P-Access-Network-Info", NULL }, /* 43 RFC3455 */
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#define POS_P_ACCESS_NETWORK_INFO 43
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{ "P-Answer-State", NULL }, /* 44 RFC4964 */
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#define POS_P_ANSWER_STATE 44
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{ "P-Asserted-Identity", NULL }, /* 45 RFC3325 */
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#define POS_P_ASSERTED_IDENTITY 45
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{ "P-Asserted-Service", NULL }, /* 46 RFC6050 */
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#define POS_P_ASSERTED_SERV 46
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{ "P-Associated-URI", NULL }, /* 47 RFC3455 */
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#define POS_P_ASSOCIATED_URI 47
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{ "P-Called-Party-ID", NULL }, /* 48 RFC3455 */
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#define POS_P_CALLED_PARTY_ID 48
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{ "P-Charging-Function-Addresses", NULL }, /* 49 RFC3455 */
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#define POS_P_CHARGING_FUNC_ADDRESSES 49
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{ "P-Charging-Vector", NULL }, /* 50 RFC3455 */
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#define POS_P_CHARGING_VECTOR 50
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{ "P-DCS-Trace-Party-ID", NULL }, /* 51 RFC5503 */
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#define POS_P_DCS_TRACE_PARTY_ID 51
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{ "P-DCS-OSPS", NULL }, /* 52 RFC5503 */
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#define POS_P_DCS_OSPS 52
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{ "P-DCS-Billing-Info", NULL }, /* 53 RFC5503 */
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#define POS_P_DCS_BILLING_INFO 53
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{ "P-DCS-LAES", NULL }, /* 54 RFC5503 */
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#define POS_P_DCS_LAES 54
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{ "P-DCS-Redirect", NULL }, /* 55 RFC5503 */
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#define POS_P_DCS_REDIRECT 55
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{ "P-Early-Media", NULL }, /* 56 RFC5009 */
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#define POS_P_EARLY_MEDIA 56
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{ "P-Media-Authorization", NULL }, /* 57 RFC3313 */
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#define POS_P_MEDIA_AUTHORIZATION 57
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{ "P-Preferred-Identity", NULL }, /* 58 RFC3325 */
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#define POS_P_PREFERRED_IDENTITY 58
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{ "P-Preferred-Service", NULL }, /* 58 RFC6050 */
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#define POS_P_PREFERRED_SERV 59
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{ "P-Profile-Key", NULL }, /* 60 RFC5002 */
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#define POS_P_PROFILE_KEY 60
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{ "P-Refused-URI-List", NULL }, /* 61 RFC5318 */
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#define POS_P_REFUSED_URI_LST 61
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{ "P-Served-User", NULL }, /* 62 RFC5502 */
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#define POS_P_SERVED_USER 62
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{ "P-User-Database", NULL }, /* 63 RFC4457 */
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#define POS_P_USER_DATABASE 63
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{ "P-Visited-Network-ID", NULL }, /* 64 RFC3455 */
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#define POS_P_VISITED_NETWORK_ID 64
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{ "Path", NULL }, /* 65 RFC3327 */
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#define POS_PATH 65
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{ "Permission-Missing", NULL }, /* 66 RFC5360 */
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#define POS_PERMISSION_MISSING 66
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{ "Policy-Contact", NULL }, /* 67 RFC3261 */
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#define POS_POLICY_CONTACT 67
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{ "Policy-ID", NULL }, /* 68 RFC3261 */
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#define POS_POLICY_ID 68
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{ "Priority", NULL }, /* 69 RFC3261 */
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#define POS_PRIORITY 69
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{ "Priv-Answer-Mode", NULL }, /* 70 RFC5373 */
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#define POS_PRIV_ANSWER_MODE 70
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{ "Privacy", NULL }, /* 71 RFC3323 */
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#define POS_PRIVACY 71
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{ "Proxy-Authenticate", NULL }, /* 72 */
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#define POS_PROXY_AUTHENTICATE 72
|
|
{ "Proxy-Authorization", NULL }, /* 73 */
|
|
#define POS_PROXY_AUTHORIZATION 73
|
|
{ "Proxy-Require", NULL }, /* 74 */
|
|
#define POS_PROXY_REQUIRE 74
|
|
{ "RAck", NULL }, /* 75 RFC3262 */
|
|
#define POS_RACK 75
|
|
{ "Reason", NULL }, /* 76 RFC3326 */
|
|
#define POS_REASON 76
|
|
{ "Reason-Phrase", NULL }, /* 77 RFC3326 */
|
|
#define POS_REASON_PHRASE 77
|
|
{ "Record-Route", NULL }, /* 78 */
|
|
#define POS_RECORD_ROUTE 78
|
|
{ "Recv-Info", NULL }, /* 79 RFC-ietf-sipcore-info-events-10.txt*/
|
|
#define POS_RECV_INFO 79
|
|
{ "Refer-Sub", NULL }, /* 80 RFC4488 */
|
|
#define POS_REFER_SUB 80
|
|
{ "Refer-To", "r" }, /* 81 RFC3515 */
|
|
#define POS_REFER_TO 81
|
|
{ "Referred-By", "b" }, /* 82 RFC3892 */
|
|
#define POS_REFERED_BY 82
|
|
{ "Reject-Contact", "j" }, /* 83 RFC3841 */
|
|
#define POS_REJECT_CONTACT 83
|
|
{ "Replaces", NULL }, /* 84 RFC3891 */
|
|
#define POS_REPLACES 84
|
|
{ "Reply-To", NULL }, /* 85 RFC3261 */
|
|
#define POS_REPLY_TO 85
|
|
{ "Request-Disposition", "d" }, /* 86 RFC3841 */
|
|
#define POS_REQUEST_DISPOSITION 86
|
|
{ "Require", NULL }, /* 87 RFC3261 */
|
|
#define POS_REQUIRE 87
|
|
{ "Resource-Priority", NULL }, /* 88 RFC4412 */
|
|
#define POS_RESOURCE_PRIORITY 88
|
|
/*{ "Response-Key (Deprecated) [RFC3261]*/
|
|
{ "Retry-After", NULL }, /* 89 RFC3261 */
|
|
#define POS_RETRY_AFTER 89
|
|
{ "Route", NULL }, /* 90 RFC3261 */
|
|
#define POS_ROUTE 90
|
|
{ "RSeq", NULL }, /* 91 RFC3262 */
|
|
#define POS_RSEQ 91
|
|
{ "Security-Client", NULL }, /* 92 RFC3329 */
|
|
#define POS_SECURITY_CLIENT 92
|
|
{ "Security-Server", NULL }, /* 93 RFC3329 */
|
|
#define POS_SECURITY_SERVER 93
|
|
{ "Security-Verify", NULL }, /* 94 RFC3329 */
|
|
#define POS_SECURITY_VERIFY 94
|
|
{ "Server", NULL }, /* 95 RFC3261 */
|
|
#define POS_SERVER 95
|
|
{ "Service-Route", NULL }, /* 96 RFC3608 */
|
|
#define POS_SERVICE_ROUTE 96
|
|
{ "Session-Expires", "x" }, /* 97 RFC4028 */
|
|
#define POS_SESSION_EXPIRES 97
|
|
{ "SIP-ETag", NULL }, /* 98 RFC3903 */
|
|
#define POS_SIP_ETAG 98
|
|
{ "SIP-If-Match", NULL }, /* 99 RFC3903 */
|
|
#define POS_SIP_IF_MATCH 99
|
|
{ "Subject", "s" }, /* 100 RFC3261 */
|
|
#define POS_SUBJECT 100
|
|
{ "Subscription-State", NULL }, /* 101 RFC3265 */
|
|
#define POS_SUBSCRIPTION_STATE 101
|
|
{ "Supported", "k" }, /* 102 RFC3261 */
|
|
#define POS_SUPPORTED 102
|
|
{ "Suppress-If-Match", NULL }, /* 103 RFC5839 */
|
|
#define POS_SUPPRESS_IF_MATCH 103
|
|
{ "Target-Dialog", NULL }, /* 104 RFC4538 */
|
|
#define POS_TARGET_DIALOG 104
|
|
{ "Timestamp", NULL }, /* 105 RFC3261 */
|
|
#define POS_TIMESTAMP 105
|
|
{ "To", "t" }, /* 106 RFC3261 */
|
|
#define POS_TO 106
|
|
{ "Trigger-Consent", NULL }, /* 107 RFC5360 */
|
|
#define POS_TRIGGER_CONSENT 107
|
|
{ "Unsupported", NULL }, /* 108 RFC3261 */
|
|
#define POS_UNSUPPORTED 108
|
|
{ "User-Agent", NULL }, /* 109 RFC3261 */
|
|
#define POS_USER_AGENT 109
|
|
{ "Via", "v" }, /* 110 RFC3261 */
|
|
#define POS_VIA 110
|
|
{ "Warning", NULL }, /* 111 RFC3261 */
|
|
#define POS_WARNING 111
|
|
{ "WWW-Authenticate", NULL }, /* 112 RFC3261 */
|
|
#define POS_WWW_AUTHENTICATE 112
|
|
{ "Diversion", NULL }, /* 113 RFC5806 */
|
|
#define POS_DIVERSION 113
|
|
{ "User-to-User", NULL }, /* 106 draft-johnston-sipping-cc-uui-09 */
|
|
#define POS_USER_TO_USER 114
|
|
};
|
|
|
|
|
|
|
|
|
|
static gint hf_header_array[] = {
|
|
-1, /* 0"Unknown-header" - Pad so that the real headers start at index 1 */
|
|
-1, /* 1"Accept" */
|
|
-1, /* 2"Accept-Contact" RFC3841 */
|
|
-1, /* 3"Accept-Encoding" */
|
|
-1, /* 4"Accept-Language" */
|
|
-1, /* 5"Accept-Resource-Priority" RFC4412 */
|
|
-1, /* 6"Alert-Info", */
|
|
-1, /* 7"Allow", */
|
|
-1, /* 8"Allow-Events", RFC3265 */
|
|
-1, /* 9"Answer-Mode" RFC5373 */
|
|
-1, /* 10"Authentication-Info" */
|
|
-1, /* 11"Authorization", */
|
|
-1, /* 12"Call-ID", */
|
|
-1, /* 13"Call-Info" */
|
|
-1, /* 14"Contact", */
|
|
-1, /* 15"Content-Disposition", */
|
|
-1, /* 16"Content-Encoding", */
|
|
-1, /* 17"Content-Language", */
|
|
-1, /* 18"Content-Length", */
|
|
-1, /* 19"Content-Type", */
|
|
-1, /* 20"CSeq", */
|
|
-1, /* 21"Date", */
|
|
-1, /* 22"Error-Info", */
|
|
-1, /* 23"Event", */
|
|
-1, /* 24"Expires", */
|
|
-1, /* 25"Feature-Caps", */
|
|
-1, /* 26"Flow-Timer", RFC5626 */
|
|
-1, /* 27"From", */
|
|
-1, /* 28"Geolocation", */
|
|
-1, /* 29"Geolocation-Error", */
|
|
-1, /* 30"Geolocation-Routing", */
|
|
-1, /* 31"History-Info", RFC4244 */
|
|
-1, /* 32"Identity", */
|
|
-1, /* 33"Identity-Info", RFC4474 */
|
|
-1, /* 34"Info-Package", RFC-ietf-sipcore-info-events-10.txt */
|
|
-1, /* 35"In-Reply-To", RFC3261 */
|
|
-1, /* 36"Join", RFC3911 */
|
|
-1, /* 37"Max-Breadth" RFC5393 */
|
|
-1, /* 38"Max-Forwards", */
|
|
-1, /* 39"MIME-Version", */
|
|
-1, /* 40"Min-Expires", */
|
|
-1, /* 41"Min-SE", RFC4028 */
|
|
-1, /* 42"Organization", */
|
|
-1, /* 43"P-Access-Network-Info", RFC3455 */
|
|
-1, /* 44"P-Answer-State", RFC4964 */
|
|
-1, /* 45"P-Asserted-Identity", RFC3325 */
|
|
-1, /* 46"P-Asserted-Service", RFC-drage-sipping-service-identification-05.txt */
|
|
-1, /* 47"P-Associated-URI", RFC3455 */
|
|
-1, /* 48"P-Called-Party-ID", RFC3455 */
|
|
-1, /* 49"P-Charging-Function-Addresses", RFC3455 */
|
|
-1, /* 50"P-Charging-Vector", RFC3455 */
|
|
-1, /* 51"P-DCS-Trace-Party-ID", RFC3603 */
|
|
-1, /* 52"P-DCS-OSPS", RFC3603 */
|
|
-1, /* 53"P-DCS-Billing-Info", RFC3603 */
|
|
-1, /* 54"P-DCS-LAES", RFC3603 */
|
|
-1, /* 55"P-DCS-Redirect", RFC3603 */
|
|
-1, /* 56"P-Early-Media", */
|
|
-1, /* 57"P-Media-Authorization", RFC3313 */
|
|
-1, /* 58"P-Preferred-Identity", RFC3325 */
|
|
-1, /* 59"P-Preferred-Service", RFC-drage-sipping-service-identification-05.txt */
|
|
-1, /* 60"P-Profile-Key", */
|
|
-1, /* 61"P-Refused-URI-List", RFC5318 */
|
|
-1, /* 62"P-Served-User", RFC5502 */
|
|
-1, /* 63"P-User-Database RFC4457 */
|
|
-1, /* 64"P-Visited-Network-ID", RFC3455 */
|
|
-1, /* 65"Path", RFC3327 */
|
|
-1, /* 66"Permission-Missing" RFC5360 */
|
|
-1, /* 67"Policy-Contact" RFC5360 */
|
|
-1, /* 68"Policy-ID" RFC5360 */
|
|
-1, /* 69"Priority" */
|
|
-1, /* 70"Priv-Answer-mode" RFC5373 */
|
|
-1, /* 71"Privacy", RFC3323 */
|
|
-1, /* 72"Proxy-Authenticate", */
|
|
-1, /* 73"Proxy-Authorization", */
|
|
-1, /* 74"Proxy-Require", */
|
|
-1, /* 75"RAck", RFC3262 */
|
|
-1, /* 76"Reason", RFC3326 */
|
|
-1, /* 77"Reason-Phrase", RFC3326 */
|
|
-1, /* 78"Record-Route", */
|
|
-1, /* 79"Recv-Info", RFC-ietf-sipcore-info-events-10.txt */
|
|
-1, /* 80"Refer-Sub",", RFC4488 */
|
|
-1, /* 81"Refer-To", RFC3515 */
|
|
-1, /* 82"Referred-By", */
|
|
-1, /* 83"Reject-Contact", RFC3841 */
|
|
-1, /* 84"Replaces", RFC3891 */
|
|
-1, /* 85"Reply-To", RFC3261 */
|
|
-1, /* 86"Request-Disposition", RFC3841 */
|
|
-1, /* 87"Require", RFC3261 */
|
|
-1, /* 88"Resource-Priority", RFC4412 */
|
|
-1, /* 89"Retry-After", RFC3261 */
|
|
-1, /* 90"Route", RFC3261 */
|
|
-1, /* 91"RSeq", RFC3262 */
|
|
-1, /* 92"Security-Client", RFC3329 */
|
|
-1, /* 93"Security-Server", RFC3329 */
|
|
-1, /* 94"Security-Verify", RFC3329 */
|
|
-1, /* 95"Server", RFC3261 */
|
|
-1, /* 96"Service-Route", RFC3608 */
|
|
-1, /* 97"Session-Expires", RFC4028 */
|
|
-1, /* 98"SIP-ETag", RFC3903 */
|
|
-1, /* 99"SIP-If-Match", RFC3903 */
|
|
-1, /* 100"Subject", RFC3261 */
|
|
-1, /* 101"Subscription-State", RFC3265 */
|
|
-1, /* 102"Supported", RFC3261 */
|
|
-1, /* 103"Suppress-If-Match", RFC4538 */
|
|
-1, /* 104"Target-Dialog", RFC4538 */
|
|
-1, /* 105"Timestamp", RFC3261 */
|
|
-1, /* 106"To", RFC3261 */
|
|
-1, /* 107"Trigger-Consent" RFC5380 */
|
|
-1, /* 108"Unsupported", RFC3261 */
|
|
-1, /* 109"User-Agent", RFC3261 */
|
|
-1, /* 110"Via", RFC3261 */
|
|
-1, /* 111"Warning", RFC3261 */
|
|
-1, /* 112"WWW-Authenticate", RFC3261 */
|
|
-1, /* 113"Diversion", RFC5806 */
|
|
-1, /* 114"User-to-User", draft-johnston-sipping-cc-uui-09 */
|
|
|
|
};
|
|
|
|
/* Track associations between parameter name and hf item */
|
|
typedef struct {
|
|
const char *param_name;
|
|
const gint *hf_item;
|
|
} header_parameter_t;
|
|
|
|
static header_parameter_t auth_parameters_hf_array[] =
|
|
{
|
|
{"response", &hf_sip_auth_digest_response},
|
|
{"nc", &hf_sip_auth_nc},
|
|
{"username", &hf_sip_auth_username},
|
|
{"realm", &hf_sip_auth_realm},
|
|
{"nonce", &hf_sip_auth_nonce},
|
|
{"algorithm", &hf_sip_auth_algorithm},
|
|
{"opaque", &hf_sip_auth_opaque},
|
|
{"qop", &hf_sip_auth_qop},
|
|
{"cnonce", &hf_sip_auth_cnonce},
|
|
{"uri", &hf_sip_auth_uri},
|
|
{"domain", &hf_sip_auth_domain},
|
|
{"stale", &hf_sip_auth_stale},
|
|
{"auts", &hf_sip_auth_auts},
|
|
{"rspauth", &hf_sip_auth_rspauth},
|
|
{"nextnonce", &hf_sip_auth_nextnonce},
|
|
{"ik", &hf_sip_auth_ik},
|
|
{"ck", &hf_sip_auth_ck}
|
|
};
|
|
|
|
static header_parameter_t via_parameters_hf_array[] =
|
|
{
|
|
{"branch", &hf_sip_via_branch},
|
|
{"maddr", &hf_sip_via_maddr},
|
|
{"rport", &hf_sip_via_rport},
|
|
{"received", &hf_sip_via_received},
|
|
{"ttl", &hf_sip_via_ttl},
|
|
{"comp", &hf_sip_via_comp},
|
|
{"sigcomp-id", &hf_sip_via_sigcomp_id}
|
|
};
|
|
|
|
|
|
typedef struct {
|
|
gint *hf_sip_addr;
|
|
gint *hf_sip_user;
|
|
gint *hf_sip_host;
|
|
gint *hf_sip_port;
|
|
gint *hf_sip_param;
|
|
gint *ett_uri;
|
|
} hf_sip_uri_t;
|
|
|
|
static hf_sip_uri_t sip_pai_uri = {
|
|
&hf_sip_pai_addr,
|
|
&hf_sip_pai_user,
|
|
&hf_sip_pai_host,
|
|
&hf_sip_pai_port,
|
|
&hf_sip_pai_param,
|
|
&ett_sip_pai_uri
|
|
};
|
|
|
|
static hf_sip_uri_t sip_ppi_uri = {
|
|
&hf_sip_ppi_addr,
|
|
&hf_sip_ppi_user,
|
|
&hf_sip_ppi_host,
|
|
&hf_sip_ppi_port,
|
|
&hf_sip_ppi_param,
|
|
&ett_sip_ppi_uri
|
|
};
|
|
|
|
static hf_sip_uri_t sip_pmiss_uri = {
|
|
&hf_sip_pmiss_addr,
|
|
&hf_sip_pmiss_user,
|
|
&hf_sip_pmiss_host,
|
|
&hf_sip_pmiss_port,
|
|
&hf_sip_pmiss_param,
|
|
&ett_sip_pmiss_uri
|
|
};
|
|
|
|
|
|
static hf_sip_uri_t sip_tc_uri = {
|
|
&hf_sip_tc_addr,
|
|
&hf_sip_tc_user,
|
|
&hf_sip_tc_host,
|
|
&hf_sip_tc_port,
|
|
&hf_sip_tc_param,
|
|
&ett_sip_tc_uri
|
|
};
|
|
|
|
static hf_sip_uri_t sip_to_uri = {
|
|
&hf_sip_to_addr,
|
|
&hf_sip_to_user,
|
|
&hf_sip_to_host,
|
|
&hf_sip_to_port,
|
|
&hf_sip_to_param,
|
|
&ett_sip_to_uri
|
|
};
|
|
|
|
static hf_sip_uri_t sip_from_uri = {
|
|
&hf_sip_from_addr,
|
|
&hf_sip_from_user,
|
|
&hf_sip_from_host,
|
|
&hf_sip_from_port,
|
|
&hf_sip_from_param,
|
|
&ett_sip_from_uri
|
|
};
|
|
|
|
static hf_sip_uri_t sip_req_uri = {
|
|
&hf_sip_ruri,
|
|
&hf_sip_ruri_user,
|
|
&hf_sip_ruri_host,
|
|
&hf_sip_ruri_port,
|
|
&hf_sip_ruri_param,
|
|
&ett_sip_ruri
|
|
};
|
|
|
|
static hf_sip_uri_t sip_contact_uri = {
|
|
&hf_sip_curi,
|
|
&hf_sip_curi_user,
|
|
&hf_sip_curi_host,
|
|
&hf_sip_curi_port,
|
|
&hf_sip_curi_param,
|
|
&ett_sip_curi
|
|
};
|
|
|
|
static hf_sip_uri_t sip_route_uri = {
|
|
&hf_sip_route,
|
|
&hf_sip_route_user,
|
|
&hf_sip_route_host,
|
|
&hf_sip_route_port,
|
|
&hf_sip_route_param,
|
|
&ett_sip_route
|
|
};
|
|
|
|
static hf_sip_uri_t sip_record_route_uri = {
|
|
&hf_sip_record_route,
|
|
&hf_sip_record_route_user,
|
|
&hf_sip_record_route_host,
|
|
&hf_sip_record_route_port,
|
|
&hf_sip_record_route_param,
|
|
&ett_sip_record_route
|
|
};
|
|
|
|
/*
|
|
* Type of line. It's either a SIP Request-Line, a SIP Status-Line, or
|
|
* another type of line.
|
|
*/
|
|
typedef enum {
|
|
REQUEST_LINE,
|
|
STATUS_LINE,
|
|
OTHER_LINE
|
|
} line_type_t;
|
|
|
|
/* Preferences */
|
|
static guint sip_tls_port = TLS_PORT_SIP;
|
|
static range_t *global_sip_tcp_port_range;
|
|
|
|
/* global_sip_raw_text determines whether we are going to display */
|
|
/* the raw text of the SIP message, much like the MEGACO dissector does. */
|
|
static gboolean global_sip_raw_text = FALSE;
|
|
/* global_sip_raw_text_without_crlf determines whether we are going to display */
|
|
/* the raw text of the SIP message with or without the '\r\n'. */
|
|
static gboolean global_sip_raw_text_without_crlf = FALSE;
|
|
/* strict_sip_version determines whether the SIP dissector enforces
|
|
* the SIP version to be "SIP/2.0". */
|
|
static gboolean strict_sip_version = TRUE;
|
|
|
|
/*
|
|
* desegmentation of SIP headers
|
|
* (when we are over TCP or another protocol providing the desegmentation API)
|
|
*/
|
|
static gboolean sip_desegment_headers = TRUE;
|
|
|
|
/*
|
|
* desegmentation of SIP bodies
|
|
* (when we are over TCP or another protocol providing the desegmentation API)
|
|
*/
|
|
static gboolean sip_desegment_body = TRUE;
|
|
|
|
/*
|
|
* same source port for retransmissions
|
|
*/
|
|
static gboolean sip_retrans_the_same_sport = TRUE;
|
|
|
|
/* Extension header subdissectors */
|
|
static dissector_table_t ext_hdr_subdissector_table;
|
|
|
|
/* Forward declaration we need below */
|
|
void proto_reg_handoff_sip(void);
|
|
static gboolean dissect_sip_common(tvbuff_t *tvb, int offset, packet_info *pinfo,
|
|
proto_tree *tree, gboolean is_heur, gboolean use_reassembly);
|
|
static line_type_t sip_parse_line(tvbuff_t *tvb, int offset, gint linelen,
|
|
guint *token_1_len);
|
|
static gboolean sip_is_known_request(tvbuff_t *tvb, int meth_offset,
|
|
guint meth_len, guint *meth_idx);
|
|
static gint sip_is_known_sip_header(gchar *header_name, guint header_len);
|
|
static void dfilter_sip_request_line(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, gint offset,
|
|
guint meth_len, gint linelen);
|
|
static void dfilter_sip_status_line(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, gint line_end, gint offset);
|
|
static void tvb_raw_text_add(tvbuff_t *tvb, int offset, int length, proto_tree *tree);
|
|
static guint sip_is_packet_resend(packet_info *pinfo,
|
|
gchar* cseq_method,
|
|
gchar* call_id,
|
|
guchar cseq_number_set, guint32 cseq_number,
|
|
line_type_t line_type);
|
|
|
|
static guint sip_find_request(packet_info *pinfo,
|
|
gchar* cseq_method,
|
|
gchar* call_id,
|
|
guchar cseq_number_set, guint32 cseq_number,
|
|
guint32 *response_time);
|
|
|
|
static guint sip_find_invite(packet_info *pinfo,
|
|
gchar* cseq_method,
|
|
gchar* call_id,
|
|
guchar cseq_number_set, guint32 cseq_number,
|
|
guint32 *response_time);
|
|
|
|
/* SIP content type and internet media type used by other dissectors
|
|
* are the same. List of media types from IANA at:
|
|
* http://www.iana.org/assignments/media-types/index.html */
|
|
static dissector_table_t media_type_dissector_table;
|
|
|
|
static heur_dissector_list_t heur_subdissector_list;
|
|
|
|
#define SIP2_HDR "SIP/2.0"
|
|
#define SIP2_HDR_LEN 7
|
|
|
|
/* Store the info needed by the SIP tap for one packet */
|
|
static sip_info_value_t *stat_info;
|
|
|
|
/* The buffer size for the cseq_method name */
|
|
#define MAX_CSEQ_METHOD_SIZE 16
|
|
|
|
/****************************************************************************
|
|
* Conversation-type definitions
|
|
*
|
|
* For each call, keep track of the current cseq number and state of
|
|
* transaction, in order to be able to detect retransmissions.
|
|
*
|
|
* Don't use the conversation mechanism, but instead:
|
|
* - store with each dissected packet original frame (if any)
|
|
* - maintain a global hash table of
|
|
* (call_id, source_addr, dest_addr) -> (cseq, transaction_state, frame)
|
|
*
|
|
* N.B. This is broken for a couple of reasons:
|
|
* - it won't cope properly with overlapping transactions within the
|
|
* same dialog
|
|
* - request response mapping won't work where the response uses a different
|
|
* address pair from the request
|
|
*
|
|
* TODO: proper transaction matching uses RFC fields (use Max-forwards or
|
|
* maybe Via count as extra key to limit view to one hop)
|
|
****************************************************************************/
|
|
|
|
static GHashTable *sip_hash = NULL; /* Hash table */
|
|
static GHashTable *sip_headers_hash = NULL; /* Hash table */
|
|
|
|
/* Types for hash table keys and values */
|
|
#define MAX_CALL_ID_SIZE 128
|
|
#define MAGIC_SOURCE_PORT 0
|
|
|
|
/* Conversation-type key */
|
|
typedef struct
|
|
{
|
|
char call_id[MAX_CALL_ID_SIZE];
|
|
address source_address;
|
|
guint32 source_port;
|
|
address dest_address;
|
|
guint32 dest_port;
|
|
} sip_hash_key;
|
|
|
|
|
|
typedef enum
|
|
{
|
|
nothing_seen,
|
|
request_seen,
|
|
provisional_response_seen,
|
|
final_response_seen
|
|
} transaction_state_t;
|
|
|
|
/* Current conversation-type value */
|
|
typedef struct
|
|
{
|
|
guint32 cseq;
|
|
transaction_state_t transaction_state;
|
|
gchar method[MAX_CSEQ_METHOD_SIZE];
|
|
nstime_t request_time;
|
|
guint32 response_code;
|
|
gint frame_number;
|
|
} sip_hash_value;
|
|
|
|
/* Result to be stored in per-packet info */
|
|
typedef struct
|
|
{
|
|
gint original_frame_num;
|
|
gint response_request_frame_num;
|
|
gint response_time;
|
|
} sip_frame_result_value;
|
|
|
|
|
|
/************************/
|
|
/* Hash table functions */
|
|
|
|
/* Equal keys */
|
|
static gint sip_equal(gconstpointer v, gconstpointer v2)
|
|
{
|
|
const sip_hash_key* val1 = (const sip_hash_key*)v;
|
|
const sip_hash_key* val2 = (const sip_hash_key*)v2;
|
|
|
|
/* Call id must match */
|
|
if (strcmp(val1->call_id, val2->call_id) != 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* Addresses must match */
|
|
return (ADDRESSES_EQUAL(&(val1->source_address), &(val2->source_address))) &&
|
|
(val1->source_port == val2->source_port) &&
|
|
(ADDRESSES_EQUAL(&(val1->dest_address), &(val2->dest_address))) &&
|
|
(val1->dest_port == val2->dest_port);
|
|
}
|
|
|
|
|
|
/* Initializes the hash table each time a new
|
|
* file is loaded or re-loaded in wireshark */
|
|
static void
|
|
sip_init_protocol(void)
|
|
{
|
|
guint i;
|
|
gchar *value_copy;
|
|
|
|
/* Destroy any existing hashes. */
|
|
if (sip_hash)
|
|
g_hash_table_destroy(sip_hash);
|
|
|
|
/* Now create them again */
|
|
sip_hash = g_hash_table_new(g_str_hash , sip_equal);
|
|
/* Create a hashtable with the SIP headers; it will be used to find the related hf entry (POS_x).
|
|
* This is faster than the previously used for loop.
|
|
* There is no g_hash_table_destroy as the lifetime is the same as the lifetime of Wireshark.
|
|
*/
|
|
if(!sip_headers_hash){
|
|
sip_headers_hash = g_hash_table_new(g_str_hash , g_str_equal);
|
|
for (i = 1; i < array_length(sip_headers); i++){
|
|
value_copy = g_strdup (sip_headers[i].name);
|
|
/* Store (and compare) the string in lower case) */
|
|
ascii_strdown_inplace(value_copy);
|
|
g_hash_table_insert(sip_headers_hash, (gpointer)value_copy, GINT_TO_POINTER(i));
|
|
}
|
|
}
|
|
}
|
|
/* Call the export PDU tap with relevant data */
|
|
static void
|
|
export_sip_pdu(packet_info *pinfo, tvbuff_t *tvb)
|
|
{
|
|
#if 0
|
|
exp_pdu_data_t *exp_pdu_data;
|
|
|
|
exp_pdu_data = (exp_pdu_data_t *)g_malloc(sizeof(exp_pdu_data_t));
|
|
|
|
exp_pdu_data->tvb_length = tvb_length(tvb);
|
|
exp_pdu_data->pdu_tvb = tvb;
|
|
|
|
/* For now just put end of options */
|
|
exp_pdu_data->tlv_buffer_len = 12;
|
|
exp_pdu_data->tlv_buffer = (guint8 *)g_malloc(12);
|
|
|
|
exp_pdu_data->tlv_buffer[0] = 0;
|
|
exp_pdu_data->tlv_buffer[1] = EXP_PDU_TAG_PROTO_NAME;
|
|
exp_pdu_data->tlv_buffer[2] = 0;
|
|
exp_pdu_data->tlv_buffer[3] = 4; /* tag length */
|
|
exp_pdu_data->tlv_buffer[4] = 's';
|
|
exp_pdu_data->tlv_buffer[5] = 'i';
|
|
exp_pdu_data->tlv_buffer[6] = 'p';
|
|
exp_pdu_data->tlv_buffer[7] = 0;
|
|
|
|
/* End of options */
|
|
exp_pdu_data->tlv_buffer[8] = 0;
|
|
exp_pdu_data->tlv_buffer[9] = 0;
|
|
exp_pdu_data->tlv_buffer[10] = 0;
|
|
exp_pdu_data->tlv_buffer[11] = 0;
|
|
#endif
|
|
exp_pdu_data_t *exp_pdu_data;
|
|
guint32 tags_bit_field;
|
|
|
|
tags_bit_field = EXP_PDU_TAG_IP_SRC_BIT + EXP_PDU_TAG_IP_DST_BIT + EXP_PDU_TAG_SRC_PORT_BIT+
|
|
EXP_PDU_TAG_DST_PORT_BIT;
|
|
|
|
exp_pdu_data = load_export_pdu_tags(pinfo, "sip", -1, tags_bit_field);
|
|
|
|
exp_pdu_data->tvb_length = tvb_length(tvb);
|
|
exp_pdu_data->pdu_tvb = tvb;
|
|
|
|
tap_queue_packet(exported_pdu_tap, pinfo, exp_pdu_data);
|
|
|
|
}
|
|
|
|
/* Structure to collect info about a sip uri */
|
|
typedef struct _uri_offset_info
|
|
{
|
|
gint display_name_start;
|
|
gint display_name_end;
|
|
gint uri_start;
|
|
gint uri_end;
|
|
gint uri_parameters_start;
|
|
gint uri_parameters_end;
|
|
gint name_addr_start;
|
|
gint name_addr_end;
|
|
gint uri_user_start;
|
|
gint uri_user_end;
|
|
gint uri_host_start;
|
|
gint uri_host_end;
|
|
gint uri_host_port_start;
|
|
gint uri_host_port_end;
|
|
} uri_offset_info;
|
|
|
|
static void
|
|
sip_uri_offset_init(uri_offset_info *uri_offsets){
|
|
|
|
/* Initialize the uri_offsets */
|
|
uri_offsets->display_name_start = -1;
|
|
uri_offsets->display_name_end = -1;
|
|
uri_offsets->uri_start = -1;
|
|
uri_offsets->uri_end = -1;
|
|
uri_offsets->uri_parameters_start = -1;
|
|
uri_offsets->uri_parameters_end = -1;
|
|
uri_offsets->name_addr_start = -1;
|
|
uri_offsets->name_addr_end = -1;
|
|
uri_offsets->uri_user_start = -1;
|
|
uri_offsets->uri_user_end = -1;
|
|
uri_offsets->uri_host_start = -1;
|
|
uri_offsets->uri_host_end = -1;
|
|
uri_offsets->uri_host_port_start = -1;
|
|
uri_offsets->uri_host_port_end = -1;
|
|
|
|
}
|
|
/* Code to parse a sip uri.
|
|
* Returns Offset end off parsing or -1 for unsuccessful parsing
|
|
* - sip_uri_offset_init() must have been called first.
|
|
*/
|
|
static gint
|
|
dissect_sip_uri(tvbuff_t *tvb, packet_info *pinfo _U_, gint start_offset,
|
|
gint line_end_offset, uri_offset_info *uri_offsets)
|
|
{
|
|
gchar c = '\0';
|
|
gint current_offset;
|
|
gint queried_offset;
|
|
gint comma_offset;
|
|
gint semicolon_offset;
|
|
gint parameter_end_offset;
|
|
gboolean in_ipv6 = FALSE;
|
|
|
|
/* skip Spaces and Tabs */
|
|
current_offset = tvb_skip_wsp(tvb, start_offset, line_end_offset - start_offset);
|
|
|
|
if(current_offset >= line_end_offset) {
|
|
/* Nothing to parse */
|
|
return -1;
|
|
}
|
|
/* Set uri start offset in case this was called directly */
|
|
uri_offsets->uri_start = current_offset;
|
|
|
|
/* Check if it's really a sip uri ( it might be a tel uri, parse that?) */
|
|
tvb_find_guint8(tvb, current_offset, line_end_offset - current_offset, ':');
|
|
if (tvb_strneql(tvb, current_offset, "sip", 3) != 0)
|
|
return -1;
|
|
|
|
if(uri_offsets->uri_end == -1)
|
|
{
|
|
/* name-addr form was NOT used e.g no closing ">" */
|
|
/* look for the first ',' or ';' which will mark the end of this URI
|
|
* In this case a semicolon indicates a header field parameter, and not an uri parameter.
|
|
*/
|
|
comma_offset = tvb_find_guint8(tvb, current_offset, line_end_offset - current_offset, ',');
|
|
semicolon_offset = tvb_find_guint8(tvb, current_offset, line_end_offset - current_offset, ';');
|
|
|
|
if (semicolon_offset != -1 && comma_offset != -1)
|
|
{
|
|
if(semicolon_offset < comma_offset)
|
|
{
|
|
uri_offsets->uri_end = semicolon_offset - 1;
|
|
}
|
|
else
|
|
{
|
|
uri_offsets->uri_end = comma_offset - 1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (semicolon_offset != -1)
|
|
{
|
|
uri_offsets->uri_end = semicolon_offset - 1;
|
|
}
|
|
else if (comma_offset != -1)
|
|
{
|
|
uri_offsets->uri_end = comma_offset - 1;
|
|
} else {
|
|
|
|
/* If both offsets are equal to -1, we don't have a semicolon or a comma.
|
|
* In that case, we assume that the end of the URI is at the line end
|
|
*/
|
|
uri_offsets->uri_end = line_end_offset - 3; /* remove '\r\n' */
|
|
}
|
|
}
|
|
uri_offsets->name_addr_end = uri_offsets->uri_end;
|
|
}
|
|
|
|
/* Look for URI address parts (user, host, host-port) */
|
|
|
|
/* Look for '@' within URI */
|
|
queried_offset = tvb_find_guint8(tvb, uri_offsets->uri_start, uri_offsets->uri_end - uri_offsets->uri_start, '@');
|
|
if(queried_offset == -1)
|
|
{
|
|
/* no '@' = no user part */
|
|
uri_offsets->uri_host_start = tvb_find_guint8(tvb, uri_offsets->uri_start, uri_offsets->uri_end - uri_offsets->uri_start, ':')+1;
|
|
}
|
|
else
|
|
{
|
|
/* with '@' = with user part */
|
|
uri_offsets->uri_user_start = tvb_find_guint8(tvb, uri_offsets->uri_start, uri_offsets->uri_end - uri_offsets->uri_start, ':')+1;
|
|
uri_offsets->uri_user_end = tvb_find_guint8(tvb, uri_offsets->uri_user_start, uri_offsets->uri_end - uri_offsets->uri_start, '@')-1;
|
|
uri_offsets->uri_host_start = uri_offsets->uri_user_end + 2;
|
|
}
|
|
|
|
/* find URI-Host end*/
|
|
parameter_end_offset = uri_offsets->uri_host_start;
|
|
|
|
in_ipv6 = (tvb_get_guint8(tvb, parameter_end_offset) == '[');
|
|
while (parameter_end_offset < line_end_offset)
|
|
{
|
|
parameter_end_offset++;
|
|
c = tvb_get_guint8(tvb, parameter_end_offset);
|
|
switch (c) {
|
|
case '>':
|
|
case ',':
|
|
goto uri_host_end_found;
|
|
case ';':
|
|
uri_offsets->uri_parameters_start = parameter_end_offset + 1;
|
|
goto uri_host_end_found;
|
|
case '?':
|
|
case ' ':
|
|
case '\r':
|
|
goto uri_host_end_found;
|
|
case ':':
|
|
if (!in_ipv6)
|
|
goto uri_host_end_found;
|
|
break;
|
|
case '[':
|
|
in_ipv6 = TRUE;
|
|
break;
|
|
case ']':
|
|
in_ipv6 = FALSE;
|
|
break;
|
|
default :
|
|
break;
|
|
}
|
|
}
|
|
|
|
uri_host_end_found:
|
|
|
|
uri_offsets->uri_host_end = parameter_end_offset - 1;
|
|
|
|
if (c == ':')
|
|
{
|
|
uri_offsets->uri_host_port_start = parameter_end_offset + 1;
|
|
parameter_end_offset = uri_offsets->uri_host_port_start;
|
|
while (parameter_end_offset < line_end_offset)
|
|
{
|
|
parameter_end_offset++;
|
|
c = tvb_get_guint8(tvb, parameter_end_offset);
|
|
switch (c) {
|
|
case '>':
|
|
case ',':
|
|
goto uri_host_port_end_found;
|
|
case ';':
|
|
uri_offsets->uri_parameters_start = parameter_end_offset + 1;
|
|
goto uri_host_port_end_found;
|
|
case '?':
|
|
case ' ':
|
|
case '\r':
|
|
goto uri_host_port_end_found;
|
|
default :
|
|
break;
|
|
}
|
|
}
|
|
|
|
uri_host_port_end_found:
|
|
|
|
uri_offsets->uri_host_port_end = parameter_end_offset -1;
|
|
}
|
|
|
|
return uri_offsets->name_addr_end;
|
|
}
|
|
|
|
/*
|
|
* History-Info = "History-Info" HCOLON
|
|
* hi-entry *(COMMA hi-entry)
|
|
*
|
|
* hi-entry = hi-targeted-to-uri *( SEMI hi-param )
|
|
* hi-targeted-to-uri= name-addr
|
|
*
|
|
*
|
|
* hi-param = hi-index / hi-extension
|
|
*
|
|
* hi-index = "index" EQUAL 1*DIGIT *(DOT 1*DIGIT)
|
|
*
|
|
* hi-extension = generic-param
|
|
*/
|
|
|
|
static gint
|
|
dissect_sip_history_info(tvbuff_t *tvb, proto_tree* tree, packet_info *pinfo _U_, gint current_offset,
|
|
gint line_end_offset)
|
|
{
|
|
int comma_offset;
|
|
gboolean first_time = TRUE;
|
|
|
|
/* split the line at the commas */
|
|
while (line_end_offset > current_offset){
|
|
comma_offset = tvb_find_guint8(tvb, current_offset, line_end_offset - current_offset, ',');
|
|
if(comma_offset == -1){
|
|
if(first_time == TRUE){
|
|
/* It was only on parameter no need to split it up */
|
|
return line_end_offset;
|
|
}
|
|
/* Last parameter */
|
|
comma_offset = line_end_offset;
|
|
}
|
|
first_time = FALSE;
|
|
proto_tree_add_text(tree, tvb, current_offset, comma_offset-current_offset,
|
|
"%s", tvb_format_text(tvb, current_offset,
|
|
comma_offset-current_offset));
|
|
|
|
current_offset = comma_offset+1;
|
|
}
|
|
|
|
return line_end_offset;
|
|
|
|
}
|
|
|
|
|
|
/*
|
|
* The syntax for the P-Charging-Function-Addresses header is described
|
|
* as follows:
|
|
*
|
|
* P-Charging-Addr = "P-Charging-Function-Addresses" HCOLON
|
|
* charge-addr-params
|
|
* *(SEMI charge-addr-params)
|
|
* charge-addr-params = ccf / ecf / generic-param
|
|
* ccf = "ccf" EQUAL gen-value
|
|
* ecf = "ecf" EQUAL gen-value
|
|
* generic-param = token [ EQUAL gen-value ]
|
|
* gen-value = token / host / quoted-string
|
|
*
|
|
*/
|
|
|
|
static gint
|
|
dissect_sip_p_charging_func_addresses(tvbuff_t *tvb, proto_tree* tree, packet_info *pinfo _U_, gint current_offset,
|
|
gint line_end_offset)
|
|
{
|
|
int semi_offset, quote_offset;
|
|
gboolean first_time = TRUE;
|
|
|
|
while (line_end_offset > current_offset){
|
|
/* Do we have a quoted string ? */
|
|
quote_offset = tvb_find_guint8(tvb, current_offset, line_end_offset - current_offset, '"');
|
|
if(quote_offset>0){
|
|
/* Find end of quoted string */
|
|
quote_offset = tvb_find_guint8(tvb, quote_offset+1, line_end_offset - current_offset, '"');
|
|
/* Find parameter end */
|
|
semi_offset = tvb_find_guint8(tvb, quote_offset+1, line_end_offset - quote_offset, ';');
|
|
}else{
|
|
/* Find parameter end */
|
|
semi_offset = tvb_find_guint8(tvb, current_offset, line_end_offset - current_offset, ';');
|
|
}
|
|
if(semi_offset == -1){
|
|
if(first_time == TRUE){
|
|
/* It was only on parameter no need to split it up */
|
|
return line_end_offset;
|
|
}
|
|
/* Last parameter */
|
|
semi_offset = line_end_offset;
|
|
}
|
|
first_time = FALSE;
|
|
proto_tree_add_text(tree, tvb, current_offset, semi_offset-current_offset,
|
|
"%s", tvb_format_text(tvb, current_offset,
|
|
semi_offset-current_offset));
|
|
|
|
current_offset = semi_offset+1;
|
|
|
|
}
|
|
|
|
return current_offset;
|
|
}
|
|
|
|
/*
|
|
* token = 1*(alphanum / "-" / "." / "!" / "%" / "*"
|
|
* / "_" / "+" / "`" / "'" / "~" )
|
|
* LWS = [*WSP CRLF] 1*WSP ; linear whitespace
|
|
* name-addr = [ display-name ] LAQUOT addr-spec RAQUOT
|
|
* addr-spec = SIP-URI / SIPS-URI / absoluteURI
|
|
* display-name = *(token LWS)/ quoted-string
|
|
*/
|
|
|
|
static gint
|
|
dissect_sip_name_addr_or_addr_spec(tvbuff_t *tvb, packet_info *pinfo _U_, gint start_offset,
|
|
gint line_end_offset, uri_offset_info *uri_offsets)
|
|
{
|
|
gchar c;
|
|
gint i;
|
|
gint current_offset;
|
|
gint queried_offset;
|
|
gint colon_offset;
|
|
gboolean uri_without_angle_quotes = FALSE;
|
|
|
|
/* skip Spaces and Tabs */
|
|
current_offset = tvb_skip_wsp(tvb, start_offset, line_end_offset - start_offset);
|
|
|
|
if(current_offset >= line_end_offset) {
|
|
/* Nothing to parse */
|
|
return -1;
|
|
}
|
|
|
|
uri_offsets->name_addr_start = current_offset;
|
|
|
|
/* First look, if we have a display name */
|
|
c=tvb_get_guint8(tvb, current_offset);
|
|
switch(c)
|
|
{
|
|
case '"':
|
|
/* We have a display name, look for the next unescaped '"' */
|
|
uri_offsets->display_name_start = current_offset;
|
|
do
|
|
{
|
|
queried_offset = tvb_find_guint8(tvb, current_offset + 1, line_end_offset - (current_offset + 1), '"');
|
|
if(queried_offset == -1)
|
|
{
|
|
/* malformed URI */
|
|
return -1;
|
|
}
|
|
current_offset = queried_offset;
|
|
|
|
/* Is it escaped? */
|
|
/* count back slashes before '"' */
|
|
for(i=1;tvb_get_guint8(tvb, queried_offset - i) == '\\';i++);
|
|
i--;
|
|
|
|
if(i % 2 == 0)
|
|
{
|
|
/* not escaped */
|
|
break;
|
|
}
|
|
} while (current_offset < line_end_offset);
|
|
if(current_offset >= line_end_offset)
|
|
{
|
|
/* malformed URI */
|
|
return -1;
|
|
}
|
|
|
|
uri_offsets->display_name_end = current_offset;
|
|
|
|
/* find start of the URI */
|
|
queried_offset = tvb_find_guint8(tvb, current_offset, line_end_offset - current_offset, '<');
|
|
if(queried_offset == -1)
|
|
{
|
|
/* malformed Uri */
|
|
return -1;
|
|
}
|
|
current_offset = queried_offset + 1;
|
|
break;
|
|
|
|
case '<':
|
|
/* We don't have a display name */
|
|
current_offset++;
|
|
break;
|
|
|
|
default:
|
|
/* We have either an URI without angles or a display name with a limited character set */
|
|
/* Look for the right angle quote or colon */
|
|
queried_offset = tvb_find_guint8(tvb, current_offset, line_end_offset - current_offset, '<');
|
|
colon_offset = tvb_find_guint8(tvb, current_offset, line_end_offset - current_offset, ':');
|
|
if(queried_offset != -1 && colon_offset != -1)
|
|
{
|
|
if(queried_offset < colon_offset)
|
|
{
|
|
/* we have an URI with angle quotes */
|
|
uri_offsets->display_name_start = current_offset;
|
|
uri_offsets->display_name_end = queried_offset - 1;
|
|
current_offset = queried_offset + 1;
|
|
}
|
|
else
|
|
{
|
|
/* we have an URI without angle quotes */
|
|
uri_without_angle_quotes = TRUE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(queried_offset != -1)
|
|
{
|
|
/* we have an URI with angle quotes */
|
|
uri_offsets->display_name_start = current_offset;
|
|
uri_offsets->display_name_end = queried_offset - 1;
|
|
current_offset = queried_offset + 1;
|
|
break;
|
|
}
|
|
if(colon_offset != -1)
|
|
{
|
|
/* we have an URI without angle quotes */
|
|
uri_without_angle_quotes = TRUE;
|
|
break;
|
|
}
|
|
/* If this point is reached, we can't parse the URI */
|
|
return -1;
|
|
}
|
|
break;
|
|
}
|
|
/* Start of URI */
|
|
uri_offsets->uri_start = current_offset;
|
|
if(uri_without_angle_quotes==FALSE){
|
|
/* name-addr form was used */
|
|
/* look for closing angle quote */
|
|
queried_offset = tvb_find_guint8(tvb, current_offset, line_end_offset - current_offset, '>');
|
|
if(queried_offset == -1)
|
|
{
|
|
/* malformed Uri */
|
|
return -1;
|
|
}
|
|
uri_offsets->name_addr_end = queried_offset;
|
|
uri_offsets->uri_end = queried_offset - 1;
|
|
}
|
|
return dissect_sip_uri(tvb, pinfo, current_offset, line_end_offset, uri_offsets);
|
|
}
|
|
|
|
|
|
/*
|
|
* Code to add dissected SIP URI Information to proto tree
|
|
*/
|
|
|
|
static proto_tree *
|
|
display_sip_uri (tvbuff_t *tvb, proto_tree *sip_element_tree, uri_offset_info* uri_offsets, hf_sip_uri_t* uri)
|
|
{
|
|
proto_item *ti;
|
|
proto_tree *uri_item_tree = NULL;
|
|
|
|
if(uri_offsets->display_name_end != uri_offsets->display_name_start) {
|
|
proto_tree_add_item(sip_element_tree, hf_sip_display, tvb, uri_offsets->display_name_start,
|
|
uri_offsets->display_name_end - uri_offsets->display_name_start + 1, ENC_ASCII|ENC_NA);
|
|
}
|
|
|
|
ti = proto_tree_add_item(sip_element_tree, *(uri->hf_sip_addr),
|
|
tvb, uri_offsets->uri_start, uri_offsets->uri_end - uri_offsets->uri_start + 1, ENC_ASCII|ENC_NA);
|
|
uri_item_tree = proto_item_add_subtree(ti, *(uri->ett_uri));
|
|
|
|
if(uri_offsets->uri_user_end > uri_offsets->uri_user_start) {
|
|
proto_tree_add_item(uri_item_tree, *(uri->hf_sip_user), tvb, uri_offsets->uri_user_start,
|
|
uri_offsets->uri_user_end - uri_offsets->uri_user_start + 1, ENC_ASCII|ENC_NA);
|
|
}
|
|
|
|
proto_tree_add_item(uri_item_tree, *(uri->hf_sip_host), tvb, uri_offsets->uri_host_start,
|
|
uri_offsets->uri_host_end - uri_offsets->uri_host_start + 1, ENC_ASCII|ENC_NA);
|
|
|
|
if(uri_offsets->uri_host_port_end > uri_offsets->uri_host_port_start) {
|
|
proto_tree_add_item(uri_item_tree, *(uri->hf_sip_port), tvb, uri_offsets->uri_host_port_start,
|
|
uri_offsets->uri_host_port_end - uri_offsets->uri_host_port_start + 1, ENC_ASCII|ENC_NA);
|
|
}
|
|
|
|
if (uri_offsets->uri_parameters_start != -1) {
|
|
/* Move current offset to the start of the first param */
|
|
gint current_offset = uri_offsets->uri_parameters_start;
|
|
gint uri_params_start_offset = current_offset;
|
|
gint queried_offset;
|
|
gint uri_param_end_offset = -1;
|
|
gchar c;
|
|
|
|
/* Put the contact parameters in the tree */
|
|
|
|
while (current_offset < uri_offsets->name_addr_end) {
|
|
queried_offset = tvb_pbrk_guint8(tvb, current_offset, uri_offsets->name_addr_end - current_offset, ",;", &c);
|
|
|
|
if (queried_offset == -1) {
|
|
/* Reached line end */
|
|
/* Check if the line ends with a ">", if so decrement end offset. */
|
|
c = tvb_get_guint8(tvb, uri_offsets->name_addr_end);
|
|
|
|
if (c == '>') {
|
|
uri_param_end_offset = uri_offsets->name_addr_end - 1;
|
|
} else {
|
|
uri_param_end_offset = uri_offsets->name_addr_end;
|
|
}
|
|
current_offset = uri_offsets->name_addr_end;
|
|
} else if (c==',') {
|
|
uri_param_end_offset = queried_offset;
|
|
current_offset = queried_offset+1; /* must move forward */
|
|
} else if (c==';') {
|
|
/* More parameters */
|
|
uri_param_end_offset = queried_offset-1;
|
|
current_offset = tvb_skip_wsp(tvb, queried_offset+1, uri_offsets->name_addr_end - queried_offset + 1);
|
|
}
|
|
|
|
proto_tree_add_item(uri_item_tree, *(uri->hf_sip_param), tvb, uri_params_start_offset ,
|
|
uri_param_end_offset - uri_params_start_offset +1, ENC_ASCII|ENC_NA);
|
|
|
|
/* In case there are more parameters, point to the start of it */
|
|
uri_params_start_offset = current_offset;
|
|
}
|
|
}
|
|
|
|
return uri_item_tree;
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Code to parse a contact header item
|
|
* Returns Offset end off parsing or -1 for unsuccessful parsing
|
|
* * contact-param = (name-addr / addr-spec) *(SEMI contact-params)
|
|
*/
|
|
static gint
|
|
dissect_sip_contact_item(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, gint start_offset, gint line_end_offset)
|
|
{
|
|
gchar c;
|
|
gint current_offset;
|
|
gint queried_offset;
|
|
gint contact_params_start_offset = -1;
|
|
/*gint contact_param_end_offset = -1;*/
|
|
uri_offset_info uri_offsets;
|
|
|
|
/* skip Spaces and Tabs */
|
|
start_offset = tvb_skip_wsp(tvb, start_offset, line_end_offset - start_offset);
|
|
|
|
if(start_offset >= line_end_offset) {
|
|
/* Nothing to parse */
|
|
return -1;
|
|
}
|
|
|
|
/* Initialize the uri_offsets */
|
|
sip_uri_offset_init(&uri_offsets);
|
|
/* contact-param = (name-addr / addr-spec) *(SEMI contact-params) */
|
|
current_offset = dissect_sip_name_addr_or_addr_spec(tvb, pinfo, start_offset, line_end_offset, &uri_offsets);
|
|
if(current_offset == -1)
|
|
{
|
|
/* Parsing failed */
|
|
return -1;
|
|
}
|
|
display_sip_uri(tvb, tree, &uri_offsets, &sip_contact_uri);
|
|
|
|
/* Check if we have contact parameters, the uri should be followed by a ';' */
|
|
contact_params_start_offset = tvb_find_guint8(tvb, uri_offsets.uri_end, line_end_offset - uri_offsets.uri_end, ';');
|
|
/* check if contact-params is present */
|
|
if(contact_params_start_offset == -1)
|
|
return line_end_offset;
|
|
|
|
/* Move current offset to the start of the first param */
|
|
contact_params_start_offset++;
|
|
current_offset = contact_params_start_offset;
|
|
|
|
/* Put the contact parameters in the tree */
|
|
|
|
queried_offset = current_offset;
|
|
|
|
while(current_offset< line_end_offset){
|
|
c = '\0';
|
|
while (queried_offset < line_end_offset)
|
|
{
|
|
queried_offset++;
|
|
c = tvb_get_guint8(tvb, queried_offset);
|
|
switch (c) {
|
|
case ',':
|
|
case ';':
|
|
case '"':
|
|
goto found;
|
|
break;
|
|
default :
|
|
break;
|
|
}
|
|
}
|
|
found:
|
|
if(queried_offset==line_end_offset){
|
|
/* Last parameter, line end */
|
|
current_offset = line_end_offset;
|
|
}else if(c=='"'){
|
|
/* Do we have a quoted string ? */
|
|
queried_offset = tvb_find_guint8(tvb, queried_offset+1, line_end_offset - queried_offset, '"');
|
|
if(queried_offset==-1){
|
|
/* We have an opening quote but no closing quote. */
|
|
queried_offset = line_end_offset;
|
|
}
|
|
current_offset = tvb_find_guint8(tvb, queried_offset+1, line_end_offset - queried_offset, ';');
|
|
if(current_offset==-1){
|
|
/* Last parameter, line end */
|
|
current_offset = line_end_offset;
|
|
}
|
|
}else{
|
|
current_offset = queried_offset;
|
|
}
|
|
proto_tree_add_item(tree, hf_sip_contact_param, tvb, contact_params_start_offset ,
|
|
current_offset - contact_params_start_offset, ENC_ASCII|ENC_NA);
|
|
/* In case there are more parameters, point to the start of it */
|
|
contact_params_start_offset = current_offset+1;
|
|
queried_offset = contact_params_start_offset;
|
|
}
|
|
|
|
return current_offset;
|
|
}
|
|
|
|
/* Code to parse an authorization header item
|
|
* Returns offset at end of parsing, or -1 for unsuccessful parsing
|
|
*/
|
|
static gint
|
|
dissect_sip_authorization_item(tvbuff_t *tvb, proto_tree *tree, gint start_offset, gint line_end_offset)
|
|
{
|
|
gint current_offset, par_name_end_offset, queried_offset;
|
|
gint equals_offset = 0;
|
|
gchar *name;
|
|
header_parameter_t *auth_parameter;
|
|
guint i = 0;
|
|
gchar c = '\0';
|
|
|
|
/* skip Spaces and Tabs */
|
|
start_offset = tvb_skip_wsp(tvb, start_offset, line_end_offset - start_offset);
|
|
|
|
if (start_offset >= line_end_offset)
|
|
{
|
|
/* Nothing to parse */
|
|
return -1;
|
|
}
|
|
|
|
current_offset = start_offset;
|
|
equals_offset = tvb_find_guint8(tvb, current_offset + 1, line_end_offset - (current_offset + 1), '=');
|
|
if(equals_offset == -1){
|
|
/* malformed parameter */
|
|
return -1;
|
|
}
|
|
par_name_end_offset = equals_offset - 1;
|
|
par_name_end_offset = tvb_skip_wsp_return(tvb,par_name_end_offset);
|
|
|
|
/* Extract the parameter name */
|
|
name = tvb_get_ephemeral_string(tvb, start_offset, par_name_end_offset-start_offset);
|
|
|
|
/* Find end of parameter, it can be a quoted string so check for quoutes too */
|
|
queried_offset = par_name_end_offset;
|
|
while (queried_offset < line_end_offset)
|
|
{
|
|
queried_offset++;
|
|
c = tvb_get_guint8(tvb, queried_offset);
|
|
switch (c) {
|
|
case ',':
|
|
case '"':
|
|
goto found;
|
|
break;
|
|
default :
|
|
break;
|
|
}
|
|
}
|
|
found:
|
|
if(queried_offset==line_end_offset){
|
|
/* Last parameter, line end */
|
|
current_offset = line_end_offset;
|
|
}else if(c=='"'){
|
|
/* Do we have a quoted string ? */
|
|
queried_offset = tvb_find_guint8(tvb, queried_offset+1, line_end_offset - queried_offset, '"');
|
|
if(queried_offset==-1){
|
|
/* We have an opening quote but no closing quote. */
|
|
queried_offset = line_end_offset;
|
|
}
|
|
current_offset = tvb_find_guint8(tvb, queried_offset+1, line_end_offset - queried_offset, ',');
|
|
if(current_offset==-1){
|
|
/* Last parameter, line end */
|
|
current_offset = line_end_offset;
|
|
}
|
|
}else{
|
|
current_offset = queried_offset;
|
|
}
|
|
|
|
/* Try to add parameter as a filterable item */
|
|
for (auth_parameter = &auth_parameters_hf_array[i];
|
|
i < array_length(auth_parameters_hf_array);
|
|
i++, auth_parameter++)
|
|
{
|
|
if (g_ascii_strcasecmp(name, auth_parameter->param_name) == 0)
|
|
{
|
|
proto_tree_add_item(tree, *(auth_parameter->hf_item), tvb,
|
|
equals_offset+1, current_offset-equals_offset-1,
|
|
ENC_ASCII|ENC_NA);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* If not matched, just add as text... */
|
|
if (i == array_length(auth_parameters_hf_array))
|
|
{
|
|
proto_tree_add_text(tree, tvb, start_offset, current_offset-start_offset,
|
|
"%s", tvb_format_text(tvb, start_offset,
|
|
current_offset-start_offset));
|
|
}
|
|
|
|
return current_offset;
|
|
}
|
|
|
|
/* Dissect the details of a Reason header */
|
|
static void
|
|
dissect_sip_reason_header(tvbuff_t *tvb, proto_tree *tree, gint start_offset, gint line_end_offset){
|
|
|
|
gint current_offset, semi_colon_offset, length;
|
|
gchar *param_name = NULL;
|
|
guint cause_value;
|
|
|
|
/* skip Spaces and Tabs */
|
|
start_offset = tvb_skip_wsp(tvb, start_offset, line_end_offset - start_offset);
|
|
|
|
if (start_offset >= line_end_offset)
|
|
{
|
|
/* Nothing to parse */
|
|
return;
|
|
}
|
|
|
|
current_offset = start_offset;
|
|
semi_colon_offset = tvb_find_guint8(tvb, current_offset, line_end_offset-current_offset, ';');
|
|
length = semi_colon_offset - current_offset;
|
|
proto_tree_add_text(tree, tvb, start_offset, length,
|
|
"Reason Protocols: %s", tvb_format_text(tvb, start_offset, length));
|
|
|
|
param_name = tvb_get_ephemeral_string(tvb, start_offset, length);
|
|
if (g_ascii_strcasecmp(param_name, "Q.850") == 0){
|
|
current_offset = tvb_find_guint8(tvb, semi_colon_offset, line_end_offset-semi_colon_offset, '=')+1;
|
|
length = line_end_offset - current_offset;
|
|
|
|
/* q850_cause_code_vals */
|
|
cause_value = (guint)strtoul(tvb_get_ephemeral_string(tvb, current_offset, length), NULL, 10);
|
|
proto_tree_add_text(tree, tvb, current_offset, length,
|
|
"Cause: %u(0x%x)[%s]", cause_value,cause_value,
|
|
val_to_str_ext(cause_value, &q850_cause_code_vals_ext, "Unknown (%d)" ));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/* Dissect the details of a Route (and Record-Route) header */
|
|
static void dissect_sip_route_header(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, hf_sip_uri_t *sip_route_uri_p, gint start_offset, gint line_end_offset)
|
|
{
|
|
gint current_offset;
|
|
guchar c;
|
|
uri_offset_info uri_offsets;
|
|
|
|
current_offset = start_offset;
|
|
|
|
/* skip Spaces and Tabs */
|
|
current_offset = tvb_skip_wsp(tvb, current_offset, line_end_offset - current_offset);
|
|
|
|
if (current_offset >= line_end_offset) {
|
|
return;
|
|
}
|
|
|
|
while (current_offset < line_end_offset) {
|
|
c = tvb_get_guint8(tvb, current_offset);
|
|
|
|
if (c == ',') {
|
|
sip_uri_offset_init(&uri_offsets);
|
|
current_offset = dissect_sip_name_addr_or_addr_spec(tvb, pinfo, start_offset, current_offset, &uri_offsets);
|
|
if(current_offset == -1)
|
|
return;
|
|
display_sip_uri(tvb, tree, &uri_offsets, sip_route_uri_p);
|
|
|
|
current_offset++;
|
|
start_offset = current_offset + 1;
|
|
|
|
} else if (current_offset == line_end_offset - 1) {
|
|
sip_uri_offset_init(&uri_offsets);
|
|
current_offset = dissect_sip_name_addr_or_addr_spec(tvb, pinfo, start_offset, line_end_offset, &uri_offsets);
|
|
if(current_offset == -1)
|
|
return;
|
|
display_sip_uri(tvb, tree, &uri_offsets, sip_route_uri_p);
|
|
|
|
return;
|
|
}
|
|
|
|
current_offset++;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/* Dissect the details of a Via header */
|
|
static void dissect_sip_via_header(tvbuff_t *tvb, proto_tree *tree, gint start_offset, gint line_end_offset)
|
|
{
|
|
gint current_offset;
|
|
gint transport_start_offset;
|
|
gint address_start_offset;
|
|
gint semicolon_offset;
|
|
guint transport_slash_count;
|
|
gboolean transport_name_started;
|
|
gboolean colon_seen;
|
|
gboolean ipv6_reference;
|
|
gboolean ipv6_address;
|
|
guchar c;
|
|
gchar *param_name = NULL;
|
|
|
|
current_offset = start_offset;
|
|
|
|
while (1)
|
|
{
|
|
/* Reset flags and counters */
|
|
transport_start_offset = 0;
|
|
semicolon_offset = 0;
|
|
transport_name_started = FALSE;
|
|
transport_slash_count = 0;
|
|
ipv6_reference = FALSE;
|
|
ipv6_address = FALSE;
|
|
colon_seen = FALSE;
|
|
|
|
/* skip Spaces and Tabs */
|
|
current_offset = tvb_skip_wsp(tvb, current_offset, line_end_offset - current_offset);
|
|
|
|
if (current_offset >= line_end_offset)
|
|
{
|
|
/* Nothing more to parse */
|
|
return;
|
|
}
|
|
|
|
/* Now look for the end of the SIP/2.0/transport parameter.
|
|
There may be spaces between the slashes */
|
|
while (current_offset < line_end_offset)
|
|
{
|
|
c = tvb_get_guint8(tvb, current_offset);
|
|
if (c == '/')
|
|
{
|
|
transport_slash_count++;
|
|
}
|
|
else
|
|
if (!transport_name_started && (transport_slash_count == 2) && isalpha(c))
|
|
{
|
|
transport_name_started = TRUE;
|
|
transport_start_offset = current_offset;
|
|
}
|
|
else
|
|
if (transport_name_started && ((c == ' ') || (c == '\t')))
|
|
{
|
|
proto_tree_add_item(tree, hf_sip_via_transport, tvb, transport_start_offset,
|
|
current_offset - transport_start_offset, ENC_ASCII|ENC_NA);
|
|
|
|
break;
|
|
}
|
|
|
|
current_offset++;
|
|
}
|
|
|
|
/* skip Spaces and Tabs */
|
|
current_offset = tvb_skip_wsp(tvb, current_offset, line_end_offset - current_offset);
|
|
|
|
/* Now read the address part */
|
|
address_start_offset = current_offset;
|
|
while (current_offset < line_end_offset)
|
|
{
|
|
c = tvb_get_guint8(tvb, current_offset);
|
|
|
|
if (c == '[') {
|
|
ipv6_reference = TRUE;
|
|
ipv6_address = TRUE;
|
|
}
|
|
else if (c == ']')
|
|
{
|
|
ipv6_reference = FALSE;
|
|
}
|
|
|
|
if (colon_seen || (c == ' ') || (c == '\t') || ((c == ':') && (ipv6_reference == FALSE)) || (c == ';'))
|
|
{
|
|
break;
|
|
}
|
|
|
|
current_offset++;
|
|
}
|
|
/* Add address to tree */
|
|
if (ipv6_address == TRUE) {
|
|
proto_tree_add_item(tree, hf_sip_via_sent_by_address, tvb, address_start_offset + 1,
|
|
current_offset - address_start_offset - 2, ENC_ASCII|ENC_NA);
|
|
} else {
|
|
proto_tree_add_item(tree, hf_sip_via_sent_by_address, tvb, address_start_offset,
|
|
current_offset - address_start_offset, ENC_ASCII|ENC_NA);
|
|
}
|
|
|
|
/* Transport port number may follow ([space] : [space])*/
|
|
current_offset = tvb_skip_wsp(tvb, current_offset, line_end_offset - current_offset);
|
|
c = tvb_get_guint8(tvb, current_offset);
|
|
|
|
if (c == ':')
|
|
{
|
|
/* Port number will follow any space after : */
|
|
gint port_offset;
|
|
current_offset++;
|
|
|
|
/* Skip optional space after colon */
|
|
current_offset = tvb_skip_wsp(tvb, current_offset, line_end_offset - current_offset);
|
|
|
|
port_offset = current_offset;
|
|
|
|
/* Find digits of port number */
|
|
while (current_offset < line_end_offset)
|
|
{
|
|
c = tvb_get_guint8(tvb, current_offset);
|
|
|
|
if (!isdigit(c))
|
|
{
|
|
if (current_offset > port_offset)
|
|
{
|
|
/* Add address port number to tree */
|
|
proto_tree_add_uint(tree, hf_sip_via_sent_by_port, tvb, port_offset,
|
|
current_offset - port_offset,
|
|
atoi(tvb_get_ephemeral_string(tvb, port_offset,
|
|
current_offset - port_offset)));
|
|
}
|
|
else
|
|
{
|
|
/* Shouldn't see a colon without a port number given */
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
|
|
current_offset++;
|
|
}
|
|
}
|
|
|
|
/* skip Spaces and Tabs */
|
|
current_offset = tvb_skip_wsp(tvb, current_offset, line_end_offset - current_offset);
|
|
|
|
|
|
/* Dissect any parameters found */
|
|
while (current_offset < line_end_offset)
|
|
{
|
|
gboolean equals_found = FALSE;
|
|
gboolean found_end_of_parameters = FALSE;
|
|
gint parameter_name_end = 0;
|
|
header_parameter_t *via_parameter;
|
|
guint i = 0;
|
|
|
|
/* Look for the semicolon that signals the start of a parameter */
|
|
while (current_offset < line_end_offset)
|
|
{
|
|
c = tvb_get_guint8(tvb, current_offset);
|
|
if (c == ';')
|
|
{
|
|
semicolon_offset = current_offset;
|
|
current_offset++;
|
|
break;
|
|
}
|
|
else
|
|
if ((c != ' ') && (c != '\t'))
|
|
{
|
|
found_end_of_parameters = TRUE;
|
|
break;
|
|
}
|
|
current_offset++;
|
|
}
|
|
|
|
if (found_end_of_parameters)
|
|
{
|
|
break;
|
|
}
|
|
|
|
if (current_offset == line_end_offset)
|
|
{
|
|
return;
|
|
}
|
|
|
|
/* Look for end of parameter name */
|
|
while (current_offset < line_end_offset)
|
|
{
|
|
c = tvb_get_guint8(tvb, current_offset);
|
|
if (!isalpha(c) && (c != '-'))
|
|
{
|
|
break;
|
|
}
|
|
current_offset++;
|
|
}
|
|
|
|
/* Not all params have an = */
|
|
if (c == '=')
|
|
{
|
|
equals_found = TRUE;
|
|
}
|
|
parameter_name_end = current_offset;
|
|
|
|
/* Read until end of parameter value */
|
|
while (current_offset < line_end_offset)
|
|
{
|
|
c = tvb_get_guint8(tvb, current_offset);
|
|
if ((c == ' ') || (c == '\t') || (c == ';') || (c == ','))
|
|
{
|
|
break;
|
|
}
|
|
current_offset++;
|
|
}
|
|
|
|
/* Note parameter name */
|
|
param_name = tvb_get_ephemeral_string(tvb, semicolon_offset+1,
|
|
parameter_name_end - semicolon_offset - 1);
|
|
|
|
/* Try to add parameter as a filterable item */
|
|
for (via_parameter = &via_parameters_hf_array[i];
|
|
i < array_length(via_parameters_hf_array);
|
|
i++, via_parameter++)
|
|
{
|
|
if (g_ascii_strcasecmp(param_name, via_parameter->param_name) == 0)
|
|
{
|
|
if (equals_found)
|
|
{
|
|
proto_tree_add_item(tree, *(via_parameter->hf_item), tvb,
|
|
parameter_name_end+1, current_offset-parameter_name_end-1,
|
|
ENC_ASCII|ENC_NA);
|
|
}
|
|
else
|
|
{
|
|
proto_tree_add_item(tree, *(via_parameter->hf_item), tvb,
|
|
semicolon_offset+1, current_offset-semicolon_offset-1,
|
|
ENC_ASCII|ENC_NA);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* If not matched, just add as text... */
|
|
if (i == array_length(via_parameters_hf_array))
|
|
{
|
|
proto_tree_add_text(tree, tvb, semicolon_offset+1, current_offset-semicolon_offset-1,
|
|
"%s", tvb_format_text(tvb, semicolon_offset+1,
|
|
current_offset-semicolon_offset-1));
|
|
}
|
|
|
|
/* skip Spaces and Tabs */
|
|
current_offset = tvb_skip_wsp(tvb, current_offset, line_end_offset - current_offset);
|
|
|
|
/* There may be a comma, followed by more Via entries... */
|
|
if (current_offset < line_end_offset)
|
|
{
|
|
c = tvb_get_guint8(tvb, current_offset);
|
|
if (c == ',')
|
|
{
|
|
/* Skip it and get out of parameter loop */
|
|
current_offset++;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Code to actually dissect the packets */
|
|
static int
|
|
dissect_sip(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
|
|
{
|
|
guint8 octet;
|
|
int len;
|
|
|
|
octet = tvb_get_guint8(tvb,0);
|
|
if ((octet & 0xf8) == 0xf8){
|
|
call_dissector(sigcomp_handle, tvb, pinfo, tree);
|
|
return tvb_length(tvb);
|
|
}
|
|
|
|
len = dissect_sip_common(tvb, 0, pinfo, tree, FALSE, FALSE);
|
|
if (len < 0)
|
|
return 0; /* not SIP */
|
|
else
|
|
return len;
|
|
}
|
|
|
|
static void
|
|
dissect_sip_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
guint8 octet;
|
|
int offset = 0;
|
|
int len;
|
|
|
|
octet = tvb_get_guint8(tvb,0);
|
|
if ((octet & 0xf8) == 0xf8){
|
|
call_dissector(sigcomp_handle, tvb, pinfo, tree);
|
|
return;
|
|
}
|
|
|
|
while (tvb_reported_length_remaining(tvb, offset) > 0) {
|
|
len = dissect_sip_common(tvb, offset, pinfo, tree, TRUE, TRUE);
|
|
if (len <= 0)
|
|
break;
|
|
offset += len;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
dissect_sip_tcp_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
|
|
{
|
|
int offset = 0;
|
|
int len;
|
|
gboolean first = TRUE;
|
|
|
|
while (tvb_reported_length_remaining(tvb, offset) > 0) {
|
|
len = dissect_sip_common(tvb, offset, pinfo, tree, !first, TRUE);
|
|
if (len == -2) {
|
|
if (first) {
|
|
/*
|
|
* If the first packet doesn't start with
|
|
* a valid SIP request or response, don't
|
|
* treat this as SIP.
|
|
*/
|
|
return FALSE;
|
|
}
|
|
break;
|
|
}
|
|
if (len == -1)
|
|
break; /* need more data */
|
|
offset += len;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
dissect_sip_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
|
|
{
|
|
return dissect_sip_common(tvb, 0, pinfo, tree, FALSE, FALSE) > 0;
|
|
}
|
|
|
|
static int
|
|
dissect_sip_common(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree,
|
|
gboolean dissect_other_as_continuation, gboolean use_reassembly)
|
|
{
|
|
int orig_offset;
|
|
gint next_offset, linelen;
|
|
int content_length, datalen, reported_datalen;
|
|
line_type_t line_type;
|
|
tvbuff_t *next_tvb;
|
|
gboolean is_known_request;
|
|
gboolean found_match = FALSE;
|
|
const char *descr;
|
|
guint token_1_len = 0;
|
|
guint current_method_idx = SIP_METHOD_INVALID;
|
|
proto_item *ts = NULL, *ti_a = NULL, *th = NULL, *sip_element_item = NULL;
|
|
proto_tree *sip_tree = NULL, *reqresp_tree = NULL, *hdr_tree = NULL,
|
|
*sip_element_tree = NULL, *message_body_tree = NULL, *cseq_tree = NULL,
|
|
*via_tree = NULL, *reason_tree = NULL, *rack_tree = NULL,
|
|
*route_tree = NULL;
|
|
guchar contacts = 0, contact_is_star = 0, expires_is_0 = 0;
|
|
guint32 cseq_number = 0;
|
|
guchar cseq_number_set = 0;
|
|
char cseq_method[MAX_CSEQ_METHOD_SIZE] = "";
|
|
char call_id[MAX_CALL_ID_SIZE] = "";
|
|
gchar *media_type_str_lower_case = NULL;
|
|
char *content_type_parameter_str = NULL;
|
|
char *content_encoding_parameter_str = NULL;
|
|
guint resend_for_packet = 0;
|
|
guint request_for_response = 0;
|
|
guint32 response_time = 0;
|
|
int strlen_to_copy;
|
|
|
|
/*
|
|
* If this should be a request of response, do this quick check to see if
|
|
* it begins with a string...
|
|
* Otherwise, SIP heuristics are expensive...
|
|
*
|
|
*/
|
|
if (!dissect_other_as_continuation &&
|
|
((tvb_reported_length_remaining(tvb, offset) < 1) || !isprint(tvb_get_guint8(tvb, offset))))
|
|
{
|
|
return -2;
|
|
}
|
|
|
|
/*
|
|
* Note that "tvb_find_line_end()" will return a value that
|
|
* is not longer than what's in the buffer, so the
|
|
* "tvb_get_ptr()" calls below won't throw exceptions.
|
|
*
|
|
* Note that "tvb_strneql()" doesn't throw exceptions, so
|
|
* "sip_parse_line()" won't throw an exception.
|
|
*/
|
|
orig_offset = offset;
|
|
linelen = tvb_find_line_end(tvb, offset, -1, &next_offset, FALSE);
|
|
if (tvb_strnlen(tvb, offset, linelen) > -1)
|
|
{
|
|
/*
|
|
* There's a NULL in the line,
|
|
* this may be SIP within another protocol.
|
|
* This heuristic still needs to improve.
|
|
*/
|
|
return -2;
|
|
}
|
|
line_type = sip_parse_line(tvb, offset, linelen, &token_1_len);
|
|
|
|
if (line_type == OTHER_LINE) {
|
|
/*
|
|
* This is neither a SIP request nor response.
|
|
*/
|
|
if (!dissect_other_as_continuation) {
|
|
/*
|
|
* We were asked to reject this.
|
|
*/
|
|
return -2;
|
|
}
|
|
|
|
/*
|
|
* Just dissect it as a continuation.
|
|
*/
|
|
} else if ((use_reassembly)&&( pinfo->ptype == PT_TCP)) {
|
|
/*
|
|
* Yes, it's a request or response.
|
|
* Do header desegmentation if we've been told to,
|
|
* and do body desegmentation if we've been told to and
|
|
* we find a Content-Length header.
|
|
*/
|
|
if (!req_resp_hdrs_do_reassembly(tvb, offset, pinfo,
|
|
sip_desegment_headers, sip_desegment_body)) {
|
|
/*
|
|
* More data needed for desegmentation.
|
|
*/
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/* Initialise stat info for passing to tap */
|
|
stat_info = ep_new0(sip_info_value_t);
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "SIP");
|
|
|
|
switch (line_type) {
|
|
|
|
case REQUEST_LINE:
|
|
is_known_request = sip_is_known_request(tvb, offset, token_1_len, ¤t_method_idx);
|
|
descr = is_known_request ? "Request" : "Unknown request";
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "%s: %s",
|
|
descr,
|
|
tvb_format_text(tvb, offset, linelen - SIP2_HDR_LEN - 1));
|
|
break;
|
|
|
|
case STATUS_LINE:
|
|
descr = "Status";
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Status: %s",
|
|
tvb_format_text(tvb, offset + SIP2_HDR_LEN + 1, linelen - SIP2_HDR_LEN - 1));
|
|
stat_info->reason_phrase = tvb_get_ephemeral_string(tvb, offset + SIP2_HDR_LEN + 5, linelen - (SIP2_HDR_LEN + 5));
|
|
break;
|
|
|
|
case OTHER_LINE:
|
|
default: /* Squelch compiler complaints */
|
|
descr = "Continuation";
|
|
col_set_str(pinfo->cinfo, COL_INFO, "Continuation");
|
|
break;
|
|
}
|
|
|
|
if (tree) {
|
|
ts = proto_tree_add_item(tree, proto_sip, tvb, offset, -1, ENC_NA);
|
|
sip_tree = proto_item_add_subtree(ts, ett_sip);
|
|
}
|
|
|
|
switch (line_type) {
|
|
|
|
case REQUEST_LINE:
|
|
if (sip_tree) {
|
|
ti_a = proto_tree_add_item(sip_tree, hf_Request_Line, tvb,
|
|
offset, linelen, ENC_ASCII|ENC_NA);
|
|
|
|
reqresp_tree = proto_item_add_subtree(ti_a, ett_sip_reqresp);
|
|
}
|
|
dfilter_sip_request_line(tvb, reqresp_tree, pinfo, offset, token_1_len, linelen);
|
|
break;
|
|
|
|
case STATUS_LINE:
|
|
if (sip_tree) {
|
|
ti_a = proto_tree_add_item(sip_tree, hf_sip_Status_Line, tvb,
|
|
offset, linelen, ENC_ASCII|ENC_NA);
|
|
reqresp_tree = proto_item_add_subtree(ti_a, ett_sip_reqresp);
|
|
}
|
|
dfilter_sip_status_line(tvb, reqresp_tree, pinfo, linelen, offset);
|
|
break;
|
|
|
|
case OTHER_LINE:
|
|
if (sip_tree) {
|
|
ti_a = proto_tree_add_text(sip_tree, tvb, offset, next_offset,
|
|
"%s line: %s", descr,
|
|
tvb_format_text(tvb, offset, linelen));
|
|
reqresp_tree = proto_item_add_subtree(ti_a, ett_sip_reqresp);
|
|
/* XXX: Is adding to 'reqresp_tree as intended ? Changed from original 'sip_tree' */
|
|
proto_tree_add_text(reqresp_tree, tvb, offset, -1, "Continuation data");
|
|
}
|
|
return tvb_length_remaining(tvb, offset);
|
|
}
|
|
|
|
offset = next_offset;
|
|
if (sip_tree) {
|
|
th = proto_tree_add_item(sip_tree, hf_sip_msg_hdr, tvb, offset,
|
|
tvb_length_remaining(tvb, offset), ENC_ASCII|ENC_NA);
|
|
proto_item_set_text(th, "Message Header");
|
|
hdr_tree = proto_item_add_subtree(th, ett_sip_hdr);
|
|
}
|
|
|
|
/*
|
|
* Process the headers - if we're not building a protocol tree,
|
|
* we just do this to find the blank line separating the
|
|
* headers from the message body.
|
|
*/
|
|
next_offset = offset;
|
|
content_length = -1;
|
|
while (tvb_reported_length_remaining(tvb, offset) > 0) {
|
|
gint line_end_offset;
|
|
gint colon_offset;
|
|
gint semi_colon_offset;
|
|
gint parameter_offset;
|
|
gint parameter_end_offset;
|
|
gint parameter_len;
|
|
gint content_type_len, content_type_parameter_str_len;
|
|
gint header_len;
|
|
gchar *header_name;
|
|
dissector_handle_t ext_hdr_handle;
|
|
gint hf_index;
|
|
gint value_offset;
|
|
gint sub_value_offset;
|
|
gint comma_offset;
|
|
guchar c;
|
|
gint value_len;
|
|
char *value;
|
|
gboolean is_no_header_termination = FALSE;
|
|
proto_item *cause;
|
|
proto_tree *tc_uri_item_tree = NULL;
|
|
uri_offset_info uri_offsets;
|
|
|
|
|
|
|
|
|
|
|
|
linelen = tvb_find_line_end(tvb, offset, -1, &next_offset, FALSE);
|
|
if (linelen == 0) {
|
|
/*
|
|
* This is a blank line separating the
|
|
* message header from the message body.
|
|
*/
|
|
offset = next_offset;
|
|
break;
|
|
}
|
|
|
|
line_end_offset = offset + linelen;
|
|
if(tvb_reported_length_remaining(tvb, next_offset) <= 0){
|
|
is_no_header_termination = TRUE;
|
|
}else{
|
|
while ((c = tvb_get_guint8(tvb, next_offset)) == ' ' || c == '\t')
|
|
{
|
|
/*
|
|
* This line end is not a header seperator.
|
|
* It just extends the header with another line.
|
|
* Look for next line end:
|
|
*/
|
|
linelen += (next_offset - line_end_offset);
|
|
linelen += tvb_find_line_end(tvb, next_offset, -1, &next_offset, FALSE);
|
|
line_end_offset = offset + linelen;
|
|
}
|
|
}
|
|
colon_offset = tvb_find_guint8(tvb, offset, linelen, ':');
|
|
if (colon_offset == -1) {
|
|
/*
|
|
* Malformed header - no colon after the name.
|
|
*/
|
|
if(hdr_tree) {
|
|
proto_tree_add_text(hdr_tree, tvb, offset,
|
|
next_offset - offset, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
}
|
|
} else {
|
|
header_len = colon_offset - offset;
|
|
header_name = (gchar*)tvb_get_ephemeral_string(tvb, offset, header_len);
|
|
ascii_strdown_inplace(header_name);
|
|
hf_index = sip_is_known_sip_header(header_name, header_len);
|
|
|
|
/*
|
|
* Skip whitespace after the colon.
|
|
*/
|
|
value_offset = tvb_skip_wsp(tvb, colon_offset + 1, line_end_offset - (colon_offset + 1));
|
|
|
|
/*
|
|
* Fetch the value.
|
|
*/
|
|
value_len = (gint) (line_end_offset - value_offset);
|
|
value = tvb_get_ephemeral_string(tvb, value_offset, value_len);
|
|
|
|
if (hf_index == -1) {
|
|
proto_item *ti_c = proto_tree_add_text(hdr_tree, tvb,
|
|
offset, next_offset - offset, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
ext_hdr_handle = dissector_get_string_handle(ext_hdr_subdissector_table, header_name);
|
|
if (ext_hdr_handle != NULL) {
|
|
tvbuff_t *next_tvb2;
|
|
next_tvb2 = tvb_new_subset(tvb, value_offset, value_len, value_len);
|
|
dissector_try_string(ext_hdr_subdissector_table, header_name, next_tvb2, pinfo, proto_item_add_subtree(ti_c, ett_sip_ext_hdr));
|
|
} else {
|
|
expert_add_info_format(pinfo, ti_c,
|
|
PI_UNDECODED, PI_NOTE,
|
|
"Unrecognised SIP header (%s)",
|
|
tvb_format_text(tvb, offset, header_len));
|
|
}
|
|
} else {
|
|
/*
|
|
* Add it to the protocol tree,
|
|
* but display the line as is.
|
|
*/
|
|
switch ( hf_index ) {
|
|
|
|
case POS_TO :
|
|
|
|
if(hdr_tree) {
|
|
proto_item *item;
|
|
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
sip_element_tree = proto_item_add_subtree( sip_element_item,
|
|
ett_sip_element);
|
|
/* To = ( "To" / "t" ) HCOLON ( name-addr
|
|
* / addr-spec ) *( SEMI to-param )
|
|
*/
|
|
sip_uri_offset_init(&uri_offsets);
|
|
if((dissect_sip_name_addr_or_addr_spec(tvb, pinfo, value_offset, line_end_offset+2, &uri_offsets)) != -1){
|
|
display_sip_uri(tvb, sip_element_tree, &uri_offsets, &sip_to_uri);
|
|
if((uri_offsets.name_addr_start != -1) && (uri_offsets.name_addr_end != -1)){
|
|
stat_info->tap_to_addr=tvb_get_ephemeral_string(tvb, uri_offsets.name_addr_start,
|
|
uri_offsets.name_addr_end - uri_offsets.name_addr_start);
|
|
}
|
|
offset = uri_offsets.name_addr_end +1;
|
|
}
|
|
|
|
/* Find parameter tag if present.
|
|
* TODO make this generic to find any interesting parameter
|
|
* use the same method as for SIP headers ?
|
|
*/
|
|
|
|
parameter_offset = offset;
|
|
while (parameter_offset < line_end_offset
|
|
&& (tvb_strneql(tvb, parameter_offset, "tag=", 4) != 0))
|
|
parameter_offset++;
|
|
|
|
if ( parameter_offset < line_end_offset ){ /* Tag found */
|
|
parameter_offset = parameter_offset + 4;
|
|
parameter_end_offset = tvb_find_guint8(tvb, parameter_offset,
|
|
(line_end_offset - parameter_offset), ';');
|
|
if ( parameter_end_offset == -1)
|
|
parameter_end_offset = line_end_offset;
|
|
parameter_len = parameter_end_offset - parameter_offset;
|
|
proto_tree_add_item(sip_element_tree, hf_sip_to_tag, tvb, parameter_offset,
|
|
parameter_len, ENC_ASCII|ENC_NA);
|
|
item = proto_tree_add_item(sip_element_tree, hf_sip_tag, tvb, parameter_offset,
|
|
parameter_len, ENC_ASCII|ENC_NA);
|
|
PROTO_ITEM_SET_HIDDEN(item);
|
|
|
|
/* Tag indicates in-dialog messages, in case we have a INVITE, SUBSCRIBE or REFER, mark it */
|
|
switch (current_method_idx) {
|
|
|
|
case SIP_METHOD_INVITE:
|
|
case SIP_METHOD_SUBSCRIBE:
|
|
case SIP_METHOD_REFER:
|
|
col_append_str(pinfo->cinfo, COL_INFO, ", in-dialog");
|
|
break;
|
|
}
|
|
}
|
|
} /* if hdr_tree */
|
|
break;
|
|
|
|
case POS_FROM :
|
|
if(hdr_tree) {
|
|
proto_item *item;
|
|
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
sip_element_tree = proto_item_add_subtree( sip_element_item, ett_sip_element);
|
|
/*
|
|
* From = ( "From" / "f" ) HCOLON from-spec
|
|
* from-spec = ( name-addr / addr-spec )
|
|
* *( SEMI from-param )
|
|
*/
|
|
|
|
sip_uri_offset_init(&uri_offsets);
|
|
if((dissect_sip_name_addr_or_addr_spec(tvb, pinfo, value_offset, line_end_offset+2, &uri_offsets)) != -1){
|
|
display_sip_uri(tvb, sip_element_tree, &uri_offsets, &sip_from_uri);
|
|
if((uri_offsets.name_addr_start != -1) && (uri_offsets.name_addr_end != -1)){
|
|
stat_info->tap_from_addr=tvb_get_ephemeral_string(tvb, uri_offsets.name_addr_start,
|
|
uri_offsets.name_addr_end - uri_offsets.name_addr_start);
|
|
}
|
|
offset = uri_offsets.name_addr_end +1;
|
|
}
|
|
|
|
/* Find parameter tag if present.
|
|
* TODO make this generic to find any interesting parameter
|
|
* use the same method as for SIP headers ?
|
|
*/
|
|
|
|
parameter_offset = offset;
|
|
while (parameter_offset < line_end_offset
|
|
&& (tvb_strneql(tvb, parameter_offset, "tag=", 4) != 0))
|
|
parameter_offset++;
|
|
if ( parameter_offset < line_end_offset ){ /* Tag found */
|
|
parameter_offset = parameter_offset + 4;
|
|
parameter_end_offset = tvb_find_guint8(tvb, parameter_offset,
|
|
(line_end_offset - parameter_offset), ';');
|
|
if ( parameter_end_offset == -1)
|
|
parameter_end_offset = line_end_offset;
|
|
parameter_len = parameter_end_offset - parameter_offset;
|
|
proto_tree_add_item(sip_element_tree, hf_sip_from_tag, tvb, parameter_offset,
|
|
parameter_len, ENC_ASCII|ENC_NA);
|
|
item = proto_tree_add_item(sip_element_tree, hf_sip_tag, tvb, parameter_offset,
|
|
parameter_len, ENC_ASCII|ENC_NA);
|
|
PROTO_ITEM_SET_HIDDEN(item);
|
|
}
|
|
}/* hdr_tree */
|
|
break;
|
|
|
|
case POS_P_ASSERTED_IDENTITY :
|
|
if(hdr_tree)
|
|
{
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
sip_element_tree = proto_item_add_subtree( sip_element_item,
|
|
ett_sip_element);
|
|
|
|
/*
|
|
* PAssertedID = "P-Asserted-Identity" HCOLON PAssertedID-value
|
|
* *(COMMA PAssertedID-value)
|
|
* PAssertedID-value = name-addr / addr-spec
|
|
*
|
|
* Initialize the uri_offsets
|
|
*/
|
|
sip_uri_offset_init(&uri_offsets);
|
|
if((dissect_sip_name_addr_or_addr_spec(tvb, pinfo, value_offset, line_end_offset+2, &uri_offsets)) != -1)
|
|
display_sip_uri(tvb, sip_element_tree, &uri_offsets, &sip_pai_uri);
|
|
}
|
|
break;
|
|
case POS_HISTORY_INFO:
|
|
if(hdr_tree)
|
|
{
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
sip_element_tree = proto_item_add_subtree( sip_element_item,
|
|
ett_sip_hist);
|
|
dissect_sip_history_info(tvb, sip_element_tree, pinfo, value_offset, line_end_offset);
|
|
}
|
|
break;
|
|
|
|
case POS_P_CHARGING_FUNC_ADDRESSES:
|
|
if(hdr_tree)
|
|
{
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
sip_element_tree = proto_item_add_subtree( sip_element_item,
|
|
ett_sip_element);
|
|
dissect_sip_p_charging_func_addresses(tvb, sip_element_tree, pinfo, value_offset, line_end_offset);
|
|
}
|
|
break;
|
|
|
|
case POS_P_PREFERRED_IDENTITY :
|
|
if(hdr_tree)
|
|
{
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
sip_element_tree = proto_item_add_subtree( sip_element_item,
|
|
ett_sip_element);
|
|
/*
|
|
* PPreferredID = "P-Preferred-Identity" HCOLON PPreferredID-value
|
|
* *(COMMA PPreferredID-value)
|
|
* PPreferredID-value = name-addr / addr-spec
|
|
*
|
|
* Initialize the uri_offsets
|
|
*/
|
|
sip_uri_offset_init(&uri_offsets);
|
|
if((dissect_sip_name_addr_or_addr_spec(tvb, pinfo, value_offset, line_end_offset+2, &uri_offsets)) != -1)
|
|
display_sip_uri(tvb, sip_element_tree, &uri_offsets, &sip_ppi_uri);
|
|
}
|
|
break;
|
|
|
|
case POS_PERMISSION_MISSING :
|
|
if(hdr_tree)
|
|
{
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
|
|
sip_element_tree = proto_item_add_subtree( sip_element_item,
|
|
ett_sip_element);
|
|
/*
|
|
* Permission-Missing = "Permission-Missing" HCOLON per-miss-spec
|
|
* *( COMMA per-miss-spec )
|
|
* per-miss-spec = ( name-addr / addr-spec )
|
|
* *( SEMI generic-param )
|
|
* Initialize the uri_offsets
|
|
*/
|
|
sip_uri_offset_init(&uri_offsets);
|
|
if((dissect_sip_name_addr_or_addr_spec(tvb, pinfo, value_offset, line_end_offset+2, &uri_offsets)) != -1)
|
|
display_sip_uri(tvb, sip_element_tree, &uri_offsets, &sip_pmiss_uri);
|
|
}
|
|
break;
|
|
|
|
|
|
case POS_TRIGGER_CONSENT :
|
|
if(hdr_tree)
|
|
{
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
|
|
sip_element_tree = proto_item_add_subtree( sip_element_item,
|
|
ett_sip_element);
|
|
/*
|
|
* Trigger-Consent = "Trigger-Consent" HCOLON trigger-cons-spec
|
|
* *( COMMA trigger-cons-spec )
|
|
* trigger-cons-spec = ( SIP-URI / SIPS-URI )
|
|
* *( SEMI trigger-param )
|
|
* trigger-param = target-uri / generic-param
|
|
* target-uri = "target-uri" EQUAL
|
|
* LDQUOT *( qdtext / quoted-pair ) RDQUOT
|
|
* Initialize the uri_offsets
|
|
*/
|
|
sip_uri_offset_init(&uri_offsets);
|
|
if((dissect_sip_uri(tvb, pinfo, value_offset, line_end_offset+2, &uri_offsets)) != -1) {
|
|
|
|
tc_uri_item_tree = display_sip_uri(tvb, sip_element_tree, &uri_offsets, &sip_tc_uri);
|
|
if (line_end_offset > uri_offsets.uri_end) {
|
|
gint hparam_offset = uri_offsets.uri_end + 1;
|
|
/* Is there a header parameter */
|
|
if (tvb_find_guint8(tvb, hparam_offset, 1,';')) {
|
|
while ((hparam_offset != -1 && hparam_offset < line_end_offset) ) {
|
|
/* Is this a target-uri ? */
|
|
hparam_offset = hparam_offset + 1;
|
|
if (tvb_strncaseeql(tvb, hparam_offset, "target-uri=\"", 12) == 0) {
|
|
gint turi_start_offset = hparam_offset + 12;
|
|
gint turi_end_offset = tvb_find_guint8(tvb, turi_start_offset, -1,'\"');
|
|
if (turi_end_offset != -1)
|
|
proto_tree_add_item(tc_uri_item_tree, hf_sip_tc_turi, tvb, turi_start_offset,(turi_end_offset - turi_start_offset),ENC_ASCII|ENC_NA);
|
|
else
|
|
break; /* malformed */
|
|
}
|
|
hparam_offset = tvb_find_guint8(tvb, hparam_offset, -1,';');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}/* hdr_tree */
|
|
break;
|
|
|
|
case POS_CSEQ :
|
|
/* Store the sequence number */
|
|
cseq_number = (guint32)strtoul(value, NULL, 10);
|
|
cseq_number_set = 1;
|
|
stat_info->tap_cseq_number=cseq_number;
|
|
|
|
/* Add CSeq tree */
|
|
if (hdr_tree) {
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
cseq_tree = proto_item_add_subtree(sip_element_item, ett_sip_cseq);
|
|
}
|
|
|
|
/* Walk past number and spaces characters to get to start
|
|
of method name */
|
|
for (sub_value_offset=0; sub_value_offset < value_len; sub_value_offset++)
|
|
{
|
|
if (!isdigit((guchar)value[sub_value_offset]))
|
|
{
|
|
proto_tree_add_uint(cseq_tree, hf_sip_cseq_seq_no,
|
|
tvb, value_offset, sub_value_offset,
|
|
cseq_number);
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (; sub_value_offset < value_len; sub_value_offset++)
|
|
{
|
|
if (isalpha((guchar)value[sub_value_offset]))
|
|
{
|
|
/* Have reached start of method name */
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (sub_value_offset == value_len)
|
|
{
|
|
/* Didn't find method name */
|
|
THROW(ReportedBoundsError);
|
|
return offset - orig_offset;
|
|
}
|
|
|
|
/* Extract method name from value */
|
|
strlen_to_copy = (int)value_len-sub_value_offset;
|
|
if (strlen_to_copy > MAX_CSEQ_METHOD_SIZE) {
|
|
/* Note the error in the protocol tree */
|
|
if (hdr_tree) {
|
|
proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value+sub_value_offset, "%s String too big: %d bytes",
|
|
sip_headers[POS_CSEQ].name,
|
|
strlen_to_copy);
|
|
}
|
|
THROW(ReportedBoundsError);
|
|
return offset - orig_offset;
|
|
}
|
|
else {
|
|
g_strlcpy(cseq_method, value+sub_value_offset, MAX_CSEQ_METHOD_SIZE);
|
|
|
|
/* Add CSeq method to the tree */
|
|
if (cseq_tree)
|
|
{
|
|
proto_tree_add_item(cseq_tree, hf_sip_cseq_method, tvb,
|
|
value_offset + sub_value_offset, strlen_to_copy, ENC_ASCII|ENC_NA);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case POS_RACK :
|
|
{
|
|
int cseq_no_offset;
|
|
/*int cseq_method_offset;*/
|
|
|
|
/* Add RAck tree */
|
|
if (hdr_tree) {
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
rack_tree = proto_item_add_subtree(sip_element_item, ett_sip_rack);
|
|
}
|
|
|
|
/* RSeq number */
|
|
for (sub_value_offset=0; sub_value_offset < value_len; sub_value_offset++)
|
|
{
|
|
if (!isdigit((guchar)value[sub_value_offset]))
|
|
{
|
|
proto_tree_add_uint(rack_tree, hf_sip_rack_rseq_no,
|
|
tvb, value_offset, sub_value_offset,
|
|
(guint32)strtoul(value, NULL, 10));
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Get to start of CSeq number */
|
|
for ( ; sub_value_offset < value_len; sub_value_offset++)
|
|
{
|
|
if (value[sub_value_offset] != ' ' &&
|
|
value[sub_value_offset] != '\t')
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
cseq_no_offset = sub_value_offset;
|
|
|
|
/* CSeq number */
|
|
for ( ; sub_value_offset < value_len; sub_value_offset++)
|
|
{
|
|
if (!isdigit((guchar)value[sub_value_offset]))
|
|
{
|
|
proto_tree_add_uint(rack_tree, hf_sip_rack_cseq_no,
|
|
tvb, value_offset+cseq_no_offset,
|
|
sub_value_offset-cseq_no_offset,
|
|
(guint32)strtoul(value+cseq_no_offset, NULL, 10));
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Get to start of CSeq method name */
|
|
for ( ; sub_value_offset < value_len; sub_value_offset++)
|
|
{
|
|
if (isalpha((guchar)value[sub_value_offset]))
|
|
{
|
|
/* Have reached start of method name */
|
|
break;
|
|
}
|
|
}
|
|
/*cseq_method_offset = sub_value_offset;*/
|
|
|
|
if (sub_value_offset == linelen)
|
|
{
|
|
/* Didn't find method name */
|
|
THROW(ReportedBoundsError);
|
|
return offset - orig_offset;
|
|
}
|
|
|
|
/* Add CSeq method to the tree */
|
|
if (cseq_tree)
|
|
{
|
|
proto_tree_add_item(rack_tree, hf_sip_rack_cseq_method, tvb,
|
|
value_offset + sub_value_offset,
|
|
(int)value_len-sub_value_offset, ENC_ASCII|ENC_NA);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case POS_CALL_ID :
|
|
/* Store the Call-id */
|
|
g_strlcpy(call_id, value, MAX_CALL_ID_SIZE);
|
|
stat_info->tap_call_id = ep_strdup(call_id);
|
|
|
|
/* Add 'Call-id' string item to tree */
|
|
if(hdr_tree) {
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
}
|
|
break;
|
|
|
|
case POS_EXPIRES :
|
|
if (strcmp(value, "0") == 0)
|
|
{
|
|
expires_is_0 = 1;
|
|
}
|
|
/* Add 'Expires' string item to tree */
|
|
if(hdr_tree) {
|
|
sip_element_item = proto_tree_add_uint(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
atoi(value));
|
|
}
|
|
break;
|
|
|
|
/*
|
|
* Content-Type is the same as Internet
|
|
* media type used by other dissectors,
|
|
* appropriate dissector found by
|
|
* lookup in "media_type" dissector table.
|
|
*/
|
|
case POS_CONTENT_TYPE :
|
|
if(hdr_tree) {
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
}
|
|
content_type_len = value_len;
|
|
semi_colon_offset = tvb_find_guint8(tvb, value_offset, value_len, ';');
|
|
/* Content-Type = ( "Content-Type" / "c" ) HCOLON media-type
|
|
* media-type = m-type SLASH m-subtype *(SEMI m-parameter)
|
|
* SEMI = SWS ";" SWS ; semicolon
|
|
* LWS = [*WSP CRLF] 1*WSP ; linear whitespace
|
|
* SWS = [LWS] ; sep whitespace
|
|
*/
|
|
if ( semi_colon_offset != -1) {
|
|
gint content_type_end;
|
|
/*
|
|
* Skip whitespace after the semicolon.
|
|
*/
|
|
parameter_offset = tvb_skip_wsp(tvb, semi_colon_offset +1, value_offset + value_len - (semi_colon_offset +1));
|
|
content_type_end = tvb_skip_wsp_return(tvb, semi_colon_offset-1);
|
|
content_type_len = content_type_end - value_offset;
|
|
content_type_parameter_str_len = value_offset + value_len - parameter_offset;
|
|
content_type_parameter_str = tvb_get_ephemeral_string(tvb, parameter_offset,
|
|
content_type_parameter_str_len);
|
|
}
|
|
media_type_str_lower_case = ascii_strdown_inplace(
|
|
(gchar *)tvb_get_ephemeral_string(tvb, value_offset, content_type_len));
|
|
|
|
/* Debug code
|
|
proto_tree_add_text(hdr_tree, tvb, value_offset,content_type_len,
|
|
"media_type_str(lower cased)=%s",media_type_str_lower_case);
|
|
*/
|
|
break;
|
|
|
|
case POS_CONTENT_LENGTH :
|
|
content_length = atoi(value);
|
|
if(hdr_tree) {
|
|
sip_element_item = proto_tree_add_uint_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
content_length, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
}
|
|
break;
|
|
|
|
case POS_MAX_BREADTH :
|
|
case POS_MAX_FORWARDS :
|
|
case POS_RSEQ :
|
|
if(hdr_tree) {
|
|
sip_element_item = proto_tree_add_uint(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
(guint32)strtoul(value, NULL, 10));
|
|
}
|
|
break;
|
|
|
|
case POS_CONTACT :
|
|
/*
|
|
* Contact = ("Contact" / "m" ) HCOLON
|
|
* ( STAR / (contact-param *(COMMA contact-param)))
|
|
* contact-param = (name-addr / addr-spec) *(SEMI contact-params)
|
|
*/
|
|
if(hdr_tree) {
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
sip_element_tree = proto_item_add_subtree( sip_element_item,
|
|
ett_sip_element);
|
|
}
|
|
/* value_offset points to the first non SWS character after ':' */
|
|
c = tvb_get_guint8(tvb, value_offset);
|
|
if (c =='*'){
|
|
contact_is_star = 1;
|
|
break;
|
|
}
|
|
|
|
if(hdr_tree) {
|
|
comma_offset = value_offset;
|
|
while((comma_offset = dissect_sip_contact_item(tvb, pinfo, sip_element_tree, comma_offset, next_offset)) != -1)
|
|
{
|
|
contacts++;
|
|
if(comma_offset == next_offset)
|
|
{
|
|
/* Line End reached: Stop Parsing */
|
|
break;
|
|
}
|
|
|
|
if(tvb_get_guint8(tvb, comma_offset) != ',')
|
|
{
|
|
/* Undefined value reached: Stop Parsing */
|
|
break;
|
|
}
|
|
comma_offset++; /* skip comma */
|
|
}
|
|
}
|
|
break;
|
|
|
|
case POS_AUTHORIZATION:
|
|
/* Authorization = "Authorization" HCOLON credentials
|
|
* credentials = ("Digest" LWS digest-response)
|
|
* / other-response
|
|
* digest-response = dig-resp *(COMMA dig-resp)
|
|
* other-response = auth-scheme LWS auth-param
|
|
* *(COMMA auth-param)
|
|
*/
|
|
case POS_WWW_AUTHENTICATE:
|
|
/* Proxy-Authenticate = "Proxy-Authenticate" HCOLON challenge
|
|
* challenge = ("Digest" LWS digest-cln *(COMMA digest-cln))
|
|
* / other-challenge
|
|
* other-challenge = auth-scheme LWS auth-param
|
|
* *(COMMA auth-param)
|
|
* auth-scheme = token
|
|
*/
|
|
case POS_PROXY_AUTHENTICATE:
|
|
/* Proxy-Authenticate = "Proxy-Authenticate" HCOLON challenge
|
|
*/
|
|
case POS_PROXY_AUTHORIZATION:
|
|
/* Proxy-Authorization = "Proxy-Authorization" HCOLON credentials
|
|
*/
|
|
case POS_AUTHENTICATION_INFO:
|
|
/* Authentication-Info = "Authentication-Info" HCOLON ainfo
|
|
* *(COMMA ainfo)
|
|
* ainfo = nextnonce / message-qop
|
|
* / response-auth / cnonce
|
|
* / nonce-count
|
|
*/
|
|
/* Add tree using whole text of line */
|
|
if (hdr_tree) {
|
|
proto_item *ti_c;
|
|
/* Add whole line as header tree */
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
sip_element_tree = proto_item_add_subtree( sip_element_item,
|
|
ett_sip_element);
|
|
|
|
/* Set sip.auth as a hidden field/filter */
|
|
ti_c = proto_tree_add_item(hdr_tree, hf_sip_auth, tvb,
|
|
offset, next_offset-offset,
|
|
ENC_ASCII|ENC_NA);
|
|
PROTO_ITEM_SET_HIDDEN(ti_c);
|
|
|
|
/* Authentication-Info does not begin with the scheme name */
|
|
if (hf_index != POS_AUTHENTICATION_INFO)
|
|
{
|
|
/* The first time comma_offset is "start of parameters" */
|
|
comma_offset = tvb_pbrk_guint8(tvb, value_offset, line_end_offset - value_offset, " \t\r\n", NULL);
|
|
proto_tree_add_item(sip_element_tree, hf_sip_auth_scheme,
|
|
tvb, value_offset, comma_offset - value_offset,
|
|
ENC_ASCII|ENC_NA);
|
|
}else{
|
|
/* The first time comma_offset is "start of parameters" */
|
|
comma_offset = value_offset;
|
|
}
|
|
|
|
/* Parse each individual parameter in the line */
|
|
while ((comma_offset = dissect_sip_authorization_item(tvb, sip_element_tree, comma_offset, line_end_offset)) != -1)
|
|
{
|
|
if(comma_offset == line_end_offset)
|
|
{
|
|
/* Line End reached: Stop Parsing */
|
|
break;
|
|
}
|
|
|
|
if(tvb_get_guint8(tvb, comma_offset) != ',')
|
|
{
|
|
/* Undefined value reached: Stop Parsing */
|
|
break;
|
|
}
|
|
comma_offset++; /* skip comma */
|
|
}
|
|
}/*hdr_tree*/
|
|
break;
|
|
|
|
case POS_ROUTE:
|
|
/* Add Route subtree */
|
|
if (hdr_tree) {
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
route_tree = proto_item_add_subtree(sip_element_item, ett_sip_route);
|
|
dissect_sip_route_header(tvb, route_tree, pinfo, &sip_route_uri, value_offset, line_end_offset);
|
|
}
|
|
break;
|
|
case POS_RECORD_ROUTE:
|
|
/* Add Record-Route subtree */
|
|
if (hdr_tree) {
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
route_tree = proto_item_add_subtree(sip_element_item, ett_sip_route);
|
|
dissect_sip_route_header(tvb, route_tree, pinfo, &sip_record_route_uri, value_offset, line_end_offset);
|
|
}
|
|
break;
|
|
case POS_VIA:
|
|
/* Add Via subtree */
|
|
if (hdr_tree) {
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
via_tree = proto_item_add_subtree(sip_element_item, ett_sip_via);
|
|
dissect_sip_via_header(tvb, via_tree, value_offset, line_end_offset);
|
|
}
|
|
break;
|
|
case POS_REASON:
|
|
if(hdr_tree) {
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
reason_tree = proto_item_add_subtree(sip_element_item, ett_sip_reason);
|
|
dissect_sip_reason_header(tvb, reason_tree, value_offset, line_end_offset);
|
|
}
|
|
break;
|
|
case POS_CONTENT_ENCODING:
|
|
/* Content-Encoding = ( "Content-Encoding" / "e" ) HCOLON
|
|
* content-coding *(COMMA content-coding)
|
|
*/
|
|
if(hdr_tree) {
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
}
|
|
content_encoding_parameter_str = ascii_strdown_inplace(tvb_get_ephemeral_string(tvb, value_offset,
|
|
(line_end_offset-value_offset)));
|
|
break;
|
|
default :
|
|
/* Default case is to assume it's an FT_STRING field */
|
|
if(hdr_tree) {
|
|
sip_element_item = proto_tree_add_string_format(hdr_tree,
|
|
hf_header_array[hf_index], tvb,
|
|
offset, next_offset - offset,
|
|
value, "%s",
|
|
tvb_format_text(tvb, offset, linelen));
|
|
}
|
|
break;
|
|
}/* end switch */
|
|
}/*if HF_index */
|
|
}/* if colon_offset */
|
|
if (is_no_header_termination == TRUE){
|
|
/* Header not terminated by empty line CRLF */
|
|
cause=proto_tree_add_text(hdr_tree, tvb, line_end_offset, -1,
|
|
"[Header not terminated by empty line (CRLF)]");
|
|
|
|
proto_item_set_expert_flags(cause, PI_MALFORMED, PI_WARN);
|
|
expert_add_info_format(pinfo, sip_element_item,
|
|
PI_MALFORMED, PI_WARN,
|
|
"Header not terminated by empty line (CRLF)");
|
|
}
|
|
offset = next_offset;
|
|
}/* End while */
|
|
|
|
datalen = tvb_length_remaining(tvb, offset);
|
|
reported_datalen = tvb_reported_length_remaining(tvb, offset);
|
|
if (content_length != -1) {
|
|
if (datalen > content_length)
|
|
datalen = content_length;
|
|
if (reported_datalen > content_length)
|
|
reported_datalen = content_length;
|
|
}
|
|
|
|
/* Add to info column interesting things learned from header fields. */
|
|
/* Registration requests */
|
|
if (current_method_idx == SIP_METHOD_REGISTER)
|
|
{
|
|
if (contact_is_star && expires_is_0)
|
|
{
|
|
col_append_str(pinfo->cinfo, COL_INFO, " (remove all bindings)");
|
|
}
|
|
else
|
|
if (!contacts)
|
|
{
|
|
col_append_str(pinfo->cinfo, COL_INFO, " (fetch bindings)");
|
|
}
|
|
}
|
|
|
|
/* Registration responses */
|
|
if (line_type == STATUS_LINE && (strcmp(cseq_method, "REGISTER") == 0))
|
|
{
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " (%d bindings)", contacts);
|
|
}
|
|
|
|
/* We've finished writing to the info col for this SIP message
|
|
* Set fence in case there is more than one (SIP)message in the frame
|
|
*/
|
|
col_append_str(pinfo->cinfo, COL_INFO, " | ");
|
|
col_set_fence(pinfo->cinfo, COL_INFO);
|
|
|
|
/* Find the total setup time, Must be done before checking for resend
|
|
* As that will overwrite the "Request packet no".
|
|
*/
|
|
if ((line_type == REQUEST_LINE)&&(strcmp(cseq_method, "ACK") == 0))
|
|
{
|
|
request_for_response = sip_find_invite(pinfo, cseq_method, call_id,
|
|
cseq_number_set, cseq_number,
|
|
&response_time);
|
|
stat_info->setup_time = response_time;
|
|
}
|
|
|
|
/* Check if this packet is a resend. */
|
|
resend_for_packet = sip_is_packet_resend(pinfo, cseq_method, call_id,
|
|
cseq_number_set, cseq_number,
|
|
line_type);
|
|
/* Mark whether this is a resend for the tap */
|
|
stat_info->resend = (resend_for_packet > 0);
|
|
|
|
/* For responses, try to link back to request frame */
|
|
if (line_type == STATUS_LINE)
|
|
{
|
|
request_for_response = sip_find_request(pinfo, cseq_method, call_id,
|
|
cseq_number_set, cseq_number,
|
|
&response_time);
|
|
}
|
|
|
|
if (datalen > 0) {
|
|
/*
|
|
* There's a message body starting at "offset".
|
|
* Set the length of the header item.
|
|
*/
|
|
proto_item_set_end(th, tvb, offset);
|
|
if(content_encoding_parameter_str != NULL &&
|
|
!strncmp(content_encoding_parameter_str, "gzip", 4)){
|
|
/* The body is gzip:ed */
|
|
next_tvb = tvb_uncompress(tvb, offset, datalen);
|
|
add_new_data_source(pinfo, next_tvb, "gunziped data");
|
|
if(sip_tree) {
|
|
ti_a = proto_tree_add_item(sip_tree, hf_sip_msg_body, next_tvb, 0, -1,
|
|
ENC_NA);
|
|
message_body_tree = proto_item_add_subtree(ti_a, ett_sip_message_body);
|
|
}
|
|
}else{
|
|
next_tvb = tvb_new_subset(tvb, offset, datalen, reported_datalen);
|
|
if(sip_tree) {
|
|
ti_a = proto_tree_add_item(sip_tree, hf_sip_msg_body, next_tvb, 0, -1,
|
|
ENC_NA);
|
|
message_body_tree = proto_item_add_subtree(ti_a, ett_sip_message_body);
|
|
}
|
|
}
|
|
|
|
/* give the content type parameters to sub dissectors */
|
|
if ( media_type_str_lower_case != NULL ) {
|
|
void *save_private_data = pinfo->private_data;
|
|
pinfo->private_data = content_type_parameter_str;
|
|
|
|
/* SDP needs a transport layer to determine request/response */
|
|
if (!strcmp(media_type_str_lower_case, "application/sdp")) {
|
|
/* Resends don't count */
|
|
if (resend_for_packet == 0) {
|
|
if (line_type == REQUEST_LINE) {
|
|
setup_sdp_transport(next_tvb, pinfo, SDP_EXCHANGE_OFFER, pinfo->fd->num);
|
|
} else if (line_type == STATUS_LINE) {
|
|
if (stat_info->response_code >= 400) {
|
|
/* SIP client request failed, so SDP offer should fail */
|
|
setup_sdp_transport(next_tvb, pinfo, SDP_EXCHANGE_ANSWER_REJECT, request_for_response);
|
|
}
|
|
else if ((stat_info->response_code >= 200) && (stat_info->response_code <= 299)) {
|
|
/* SIP success request, so SDP offer should be accepted */
|
|
setup_sdp_transport(next_tvb, pinfo, SDP_EXCHANGE_ANSWER_ACCEPT, request_for_response);
|
|
}
|
|
}
|
|
} else {
|
|
setup_sdp_transport_resend(pinfo->fd->num, resend_for_packet);
|
|
}
|
|
}
|
|
|
|
found_match = dissector_try_string(media_type_dissector_table,
|
|
media_type_str_lower_case,
|
|
next_tvb, pinfo,
|
|
message_body_tree);
|
|
if (!found_match &&
|
|
!strncmp(media_type_str_lower_case, "multipart/", sizeof("multipart/")-1)) {
|
|
/* Try to decode the unknown multipart subtype anyway */
|
|
found_match = dissector_try_string(media_type_dissector_table,
|
|
"multipart/",
|
|
next_tvb, pinfo,
|
|
message_body_tree);
|
|
}
|
|
pinfo->private_data = save_private_data;
|
|
/* If no match dump as text */
|
|
}
|
|
if ( found_match != TRUE )
|
|
{
|
|
if (!(dissector_try_heuristic(heur_subdissector_list,
|
|
next_tvb, pinfo, message_body_tree, NULL))) {
|
|
int tmp_offset = 0;
|
|
while (tvb_offset_exists(next_tvb, tmp_offset)) {
|
|
tvb_find_line_end(next_tvb, tmp_offset, -1, &next_offset, FALSE);
|
|
linelen = next_offset - tmp_offset;
|
|
if(message_body_tree) {
|
|
proto_tree_add_text(message_body_tree, next_tvb,
|
|
tmp_offset, linelen, "%s",
|
|
tvb_format_text(next_tvb, tmp_offset, linelen));
|
|
}
|
|
tmp_offset = next_offset;
|
|
}/* end while */
|
|
}
|
|
}
|
|
offset += datalen;
|
|
}
|
|
|
|
/* And add the filterable field to the request/response line */
|
|
if (reqresp_tree)
|
|
{
|
|
proto_item *item;
|
|
item = proto_tree_add_boolean(reqresp_tree, hf_sip_resend, tvb, orig_offset, 0,
|
|
resend_for_packet > 0);
|
|
PROTO_ITEM_SET_GENERATED(item);
|
|
if (resend_for_packet > 0)
|
|
{
|
|
item = proto_tree_add_uint(reqresp_tree, hf_sip_original_frame,
|
|
tvb, orig_offset, 0, resend_for_packet);
|
|
PROTO_ITEM_SET_GENERATED(item);
|
|
}
|
|
|
|
if (request_for_response > 0)
|
|
{
|
|
item = proto_tree_add_uint(reqresp_tree, hf_sip_matching_request_frame,
|
|
tvb, orig_offset, 0, request_for_response);
|
|
PROTO_ITEM_SET_GENERATED(item);
|
|
item = proto_tree_add_uint(reqresp_tree, hf_sip_response_time,
|
|
tvb, orig_offset, 0, response_time);
|
|
PROTO_ITEM_SET_GENERATED(item);
|
|
if ((line_type == STATUS_LINE)&&(strcmp(cseq_method, "BYE") == 0)){
|
|
item = proto_tree_add_uint(reqresp_tree, hf_sip_release_time,
|
|
tvb, orig_offset, 0, response_time);
|
|
PROTO_ITEM_SET_GENERATED(item);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ts != NULL)
|
|
proto_item_set_len(ts, offset - orig_offset);
|
|
|
|
if (global_sip_raw_text)
|
|
tvb_raw_text_add(tvb, orig_offset, offset - orig_offset, tree);
|
|
|
|
/* Report this packet to the tap */
|
|
if (!pinfo->flags.in_error_pkt)
|
|
{
|
|
tap_queue_packet(sip_tap, pinfo, stat_info);
|
|
if(have_tap_listener(exported_pdu_tap)){
|
|
export_sip_pdu(pinfo,tvb);
|
|
}
|
|
}
|
|
|
|
/* Append a brief summary to the SIP root item */
|
|
if (stat_info->request_method) {
|
|
proto_item_append_text(ts, " (%s)", stat_info->request_method);
|
|
}
|
|
else {
|
|
proto_item_append_text(ts, " (%u)", stat_info->response_code);
|
|
}
|
|
return offset - orig_offset;
|
|
}
|
|
|
|
/* Display filter for SIP Request-Line */
|
|
static void
|
|
dfilter_sip_request_line(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, gint offset, guint meth_len, gint linelen)
|
|
{
|
|
char *value;
|
|
guint parameter_len = meth_len;
|
|
uri_offset_info uri_offsets;
|
|
|
|
/*
|
|
* We know we have the entire method; otherwise, "sip_parse_line()"
|
|
* would have returned OTHER_LINE.
|
|
* Request-Line = Method SP Request-URI SP SIP-Version CRLF
|
|
* SP = single space
|
|
* Request-URI = SIP-URI / SIPS-URI / absoluteURI
|
|
*/
|
|
|
|
/* get method string*/
|
|
value = tvb_get_ephemeral_string(tvb, offset, parameter_len);
|
|
|
|
/* Copy request method for telling tap */
|
|
stat_info->request_method = value;
|
|
|
|
if (tree) {
|
|
proto_tree_add_string(tree, hf_sip_Method, tvb, offset, parameter_len, value);
|
|
|
|
/* build Request-URI tree*/
|
|
offset=offset + parameter_len+1;
|
|
sip_uri_offset_init(&uri_offsets);
|
|
/* calc R-URI len*/
|
|
uri_offsets.uri_end = tvb_find_guint8(tvb, offset, linelen, ' ')-1;
|
|
dissect_sip_uri(tvb, pinfo, offset, offset + linelen, &uri_offsets);
|
|
display_sip_uri(tvb, tree, &uri_offsets, &sip_req_uri);
|
|
}
|
|
}
|
|
|
|
/* Display filter for SIP Status-Line */
|
|
static void
|
|
dfilter_sip_status_line(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, gint line_end, gint offset)
|
|
{
|
|
gint response_code = 0;
|
|
int diag_len;
|
|
tvbuff_t *next_tvb;
|
|
|
|
/*
|
|
* We know we have the entire status code; otherwise,
|
|
* "sip_parse_line()" would have returned OTHER_LINE.
|
|
* We also know that we have a version string followed by a
|
|
* space at the beginning of the line, for the same reason.
|
|
*/
|
|
response_code = atoi((char*)tvb_get_ephemeral_string(tvb, offset + SIP2_HDR_LEN + 1, 3));
|
|
|
|
/* Add numerical response code to tree */
|
|
if (tree) {
|
|
proto_tree_add_uint(tree, hf_sip_Status_Code, tvb, offset + SIP2_HDR_LEN + 1,
|
|
3, response_code);
|
|
}
|
|
|
|
/* Add response code for sending to tap */
|
|
stat_info->response_code = response_code;
|
|
|
|
/* Skip past the responce code and possible trailing space */
|
|
offset = SIP2_HDR_LEN + 1 + 3 + 1;
|
|
|
|
/* Check for diagnostics */
|
|
diag_len = line_end - offset;
|
|
if((diag_len) <= 0)
|
|
return;
|
|
|
|
/* If we have a SIP diagnostics sub dissector call it */
|
|
if(sip_diag_handle){
|
|
next_tvb = tvb_new_subset(tvb, offset, diag_len, diag_len);
|
|
call_dissector(sip_diag_handle, next_tvb, pinfo, tree);
|
|
}
|
|
}
|
|
|
|
/* From section 4.1 of RFC 2543:
|
|
*
|
|
* Request-Line = Method SP Request-URI SP SIP-Version CRLF
|
|
*
|
|
* From section 5.1 of RFC 2543:
|
|
*
|
|
* Status-Line = SIP-version SP Status-Code SP Reason-Phrase CRLF
|
|
*
|
|
* From section 7.1 of RFC 3261:
|
|
*
|
|
* Unlike HTTP, SIP treats the version number as a literal string.
|
|
* In practice, this should make no difference.
|
|
*/
|
|
static line_type_t
|
|
sip_parse_line(tvbuff_t *tvb, int offset, gint linelen, guint *token_1_lenp)
|
|
{
|
|
gint space_offset;
|
|
gint token_1_start;
|
|
guint token_1_len;
|
|
gint token_2_start;
|
|
guint token_2_len;
|
|
gint token_3_start;
|
|
guint token_3_len;
|
|
gint colon_pos;
|
|
|
|
token_1_start = offset;
|
|
space_offset = tvb_find_guint8(tvb, token_1_start, -1, ' ');
|
|
if ((space_offset == -1) || (space_offset == token_1_start)) {
|
|
/*
|
|
* Either there's no space in the line (which means
|
|
* the line is empty or doesn't have a token followed
|
|
* by a space; neither is valid for a request or status), or
|
|
* the first character in the line is a space (meaning
|
|
* the method is empty, which isn't valid for a request,
|
|
* or the SIP version is empty, which isn't valid for a
|
|
* status).
|
|
*/
|
|
return OTHER_LINE;
|
|
}
|
|
token_1_len = space_offset - token_1_start;
|
|
token_2_start = space_offset + 1;
|
|
space_offset = tvb_find_guint8(tvb, token_2_start, -1, ' ');
|
|
if (space_offset == -1) {
|
|
/*
|
|
* There's no space after the second token, so we don't
|
|
* have a third token.
|
|
*/
|
|
return OTHER_LINE;
|
|
}
|
|
token_2_len = space_offset - token_2_start;
|
|
token_3_start = space_offset + 1;
|
|
token_3_len = token_1_start + linelen - token_3_start;
|
|
|
|
*token_1_lenp = token_1_len;
|
|
|
|
/*
|
|
* Is the first token a version string?
|
|
*/
|
|
if ( (strict_sip_version && (
|
|
token_1_len == SIP2_HDR_LEN
|
|
&& tvb_strneql(tvb, token_1_start, SIP2_HDR, SIP2_HDR_LEN) == 0)
|
|
) || (! strict_sip_version && (
|
|
tvb_strncaseeql(tvb, token_1_start, "SIP/", 4) == 0)
|
|
)) {
|
|
/*
|
|
* Yes, so this is either a Status-Line or something
|
|
* else other than a Request-Line. To be a Status-Line,
|
|
* the second token must be a 3-digit number.
|
|
*/
|
|
if (token_2_len != 3) {
|
|
/*
|
|
* We don't have 3-character status code.
|
|
*/
|
|
return OTHER_LINE;
|
|
}
|
|
if (!isdigit(tvb_get_guint8(tvb, token_2_start)) ||
|
|
!isdigit(tvb_get_guint8(tvb, token_2_start + 1)) ||
|
|
!isdigit(tvb_get_guint8(tvb, token_2_start + 2))) {
|
|
/*
|
|
* 3 characters yes, 3 digits no.
|
|
*/
|
|
return OTHER_LINE;
|
|
}
|
|
return STATUS_LINE;
|
|
} else {
|
|
/*
|
|
* No, so this is either a Request-Line or something
|
|
* other than a Status-Line. To be a Request-Line, the
|
|
* second token must be a URI and the third token must
|
|
* be a version string.
|
|
*/
|
|
if (token_2_len < 3) {
|
|
/*
|
|
* We don't have a URI consisting of at least 3
|
|
* characters.
|
|
*/
|
|
return OTHER_LINE;
|
|
}
|
|
colon_pos = tvb_find_guint8(tvb, token_2_start + 1, -1, ':');
|
|
if (colon_pos == -1) {
|
|
/*
|
|
* There is no colon after the method, so the URI
|
|
* doesn't have a colon in it, so it's not valid.
|
|
*/
|
|
return OTHER_LINE;
|
|
}
|
|
if (colon_pos >= token_3_start) {
|
|
/*
|
|
* The colon is in the version string, not the URI.
|
|
*/
|
|
return OTHER_LINE;
|
|
}
|
|
/* XXX - Check for a proper URI prefix? */
|
|
if ( (strict_sip_version && (
|
|
token_3_len != SIP2_HDR_LEN
|
|
|| tvb_strneql(tvb, token_3_start, SIP2_HDR, SIP2_HDR_LEN) == -1)
|
|
) || (! strict_sip_version && (
|
|
tvb_strncaseeql(tvb, token_3_start, "SIP/", 4) == -1)
|
|
)) {
|
|
/*
|
|
* The version string isn't an SIP version 2.0 version
|
|
* string.
|
|
*/
|
|
return OTHER_LINE;
|
|
}
|
|
return REQUEST_LINE;
|
|
}
|
|
}
|
|
|
|
static gboolean sip_is_known_request(tvbuff_t *tvb, int meth_offset,
|
|
guint meth_len, guint *meth_idx)
|
|
{
|
|
guint i;
|
|
gchar *meth_name;
|
|
|
|
meth_name = tvb_get_ephemeral_string(tvb, meth_offset, meth_len);
|
|
|
|
for (i = 1; i < array_length(sip_methods); i++) {
|
|
if (meth_len == strlen(sip_methods[i]) &&
|
|
strncmp(meth_name, sip_methods[i], meth_len) == 0)
|
|
{
|
|
*meth_idx = i;
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* Returns index of method in sip_headers
|
|
* Header namne should be in lower case
|
|
*/
|
|
static gint sip_is_known_sip_header(gchar *header_name, guint header_len)
|
|
{
|
|
guint pos;
|
|
|
|
/* Compact name is one character long */
|
|
if(header_len>1){
|
|
pos = GPOINTER_TO_UINT(g_hash_table_lookup(sip_headers_hash, header_name));
|
|
if (pos!=0)
|
|
return pos;
|
|
}
|
|
|
|
/* Look for compact name match */
|
|
for (pos = 1; pos < array_length(sip_headers); pos++) {
|
|
if (sip_headers[pos].compact_name != NULL &&
|
|
header_len == strlen(sip_headers[pos].compact_name) &&
|
|
g_ascii_strncasecmp(header_name, sip_headers[pos].compact_name, header_len) == 0)
|
|
return pos;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Display the entire message as raw text.
|
|
*/
|
|
static void
|
|
tvb_raw_text_add(tvbuff_t *tvb, int offset, int length, proto_tree *tree)
|
|
{
|
|
proto_tree *raw_tree = NULL;
|
|
proto_item *ti = NULL;
|
|
int next_offset, linelen, end_offset;
|
|
char *str;
|
|
|
|
if (tree) {
|
|
ti = proto_tree_add_item(tree, proto_raw_sip, tvb, offset, length, ENC_NA);
|
|
raw_tree = proto_item_add_subtree(ti, ett_raw_text);
|
|
}
|
|
|
|
end_offset = offset + length;
|
|
|
|
while (offset < end_offset) {
|
|
tvb_find_line_end(tvb, offset, -1, &next_offset, FALSE);
|
|
linelen = next_offset - offset;
|
|
if (raw_tree) {
|
|
if (global_sip_raw_text_without_crlf)
|
|
str = tvb_format_text_wsp(tvb, offset, linelen);
|
|
else
|
|
str = tvb_format_text(tvb, offset, linelen);
|
|
proto_tree_add_string_format(raw_tree, hf_sip_raw_line, tvb, offset, linelen,
|
|
str,
|
|
"%s",
|
|
str);
|
|
}
|
|
offset = next_offset;
|
|
}
|
|
}
|
|
|
|
/* Check to see if this packet is a resent request. Return value is the frame number
|
|
of the original frame this packet seems to be resending (0 = no resend). */
|
|
guint sip_is_packet_resend(packet_info *pinfo,
|
|
gchar *cseq_method,
|
|
gchar *call_id,
|
|
guchar cseq_number_set,
|
|
guint32 cseq_number, line_type_t line_type)
|
|
{
|
|
guint32 cseq_to_compare = 0;
|
|
sip_hash_key key;
|
|
sip_hash_key *p_key = 0;
|
|
sip_hash_value *p_val = 0;
|
|
sip_frame_result_value *sip_frame_result = NULL;
|
|
guint result = 0;
|
|
|
|
/* Only consider retransmission of UDP packets */
|
|
if (pinfo->ptype != PT_UDP)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* Don't consider packets that appear to be resent only because
|
|
they are e.g. returned in ICMP unreachable messages. */
|
|
if (pinfo->flags.in_error_pkt)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* A broken packet may have no cseq number set. Don't consider it as
|
|
a resend */
|
|
if (!cseq_number_set)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* Return any answer stored from previous dissection */
|
|
if (pinfo->fd->flags.visited)
|
|
{
|
|
sip_frame_result = (sip_frame_result_value*)p_get_proto_data(pinfo->fd, proto_sip, 0);
|
|
if (sip_frame_result != NULL)
|
|
{
|
|
return sip_frame_result->original_frame_num;
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* No packet entry found, consult global hash table */
|
|
|
|
/* Prepare the key */
|
|
g_strlcpy(key.call_id, call_id, MAX_CALL_ID_SIZE);
|
|
|
|
/* We're only using these addresses locally (for the hash lookup) so
|
|
* there is no need to make a (g_malloc'd) copy of them.
|
|
*/
|
|
SET_ADDRESS(&key.dest_address, pinfo->net_dst.type, pinfo->net_dst.len,
|
|
pinfo->net_dst.data);
|
|
SET_ADDRESS(&key.source_address, pinfo->net_src.type,
|
|
pinfo->net_src.len, pinfo->net_src.data);
|
|
key.dest_port = pinfo->destport;
|
|
if (sip_retrans_the_same_sport) {
|
|
key.source_port = pinfo->srcport;
|
|
} else {
|
|
key.source_port = MAGIC_SOURCE_PORT;
|
|
}
|
|
|
|
/* Do the lookup */
|
|
p_val = (sip_hash_value*)g_hash_table_lookup(sip_hash, &key);
|
|
|
|
if (p_val)
|
|
{
|
|
/* Table entry found, we'll use its value for comparison */
|
|
cseq_to_compare = p_val->cseq;
|
|
|
|
/* First time through, must update value with current details if
|
|
cseq number has changed */
|
|
if (cseq_number != p_val->cseq)
|
|
{
|
|
p_val->cseq = cseq_number;
|
|
g_strlcpy(p_val->method, cseq_method, MAX_CSEQ_METHOD_SIZE);
|
|
p_val->transaction_state = nothing_seen;
|
|
p_val->frame_number = 0;
|
|
if (line_type == REQUEST_LINE)
|
|
{
|
|
p_val->request_time = pinfo->fd->abs_ts;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Need to create a new table entry */
|
|
|
|
/* Allocate a new key and value */
|
|
p_key = se_new(sip_hash_key);
|
|
p_val = se_new(sip_hash_value);
|
|
|
|
/* Fill in key and value details */
|
|
g_snprintf(p_key->call_id, MAX_CALL_ID_SIZE, "%s", call_id);
|
|
SE_COPY_ADDRESS(&(p_key->dest_address), &pinfo->net_dst);
|
|
SE_COPY_ADDRESS(&(p_key->source_address), &pinfo->net_src);
|
|
p_key->dest_port = pinfo->destport;
|
|
if (sip_retrans_the_same_sport) {
|
|
p_key->source_port = pinfo->srcport;
|
|
} else {
|
|
p_key->source_port = MAGIC_SOURCE_PORT;
|
|
}
|
|
|
|
p_val->cseq = cseq_number;
|
|
g_strlcpy(p_val->method, cseq_method, MAX_CSEQ_METHOD_SIZE);
|
|
p_val->transaction_state = nothing_seen;
|
|
p_val->frame_number = 0;
|
|
if (line_type == REQUEST_LINE)
|
|
{
|
|
p_val->request_time = pinfo->fd->abs_ts;
|
|
}
|
|
|
|
/* Add entry */
|
|
g_hash_table_insert(sip_hash, p_key, p_val);
|
|
|
|
/* Assume have seen no cseq yet */
|
|
cseq_to_compare = 0;
|
|
}
|
|
|
|
|
|
/******************************************/
|
|
/* Is it a resend??? */
|
|
|
|
/* Does this look like a resent request (discount ACK, CANCEL, or a
|
|
different method from the original one) ? */
|
|
|
|
if ((line_type == REQUEST_LINE) && (cseq_number == cseq_to_compare) &&
|
|
(p_val->transaction_state == request_seen) &&
|
|
(strcmp(cseq_method, p_val->method) == 0) &&
|
|
(strcmp(cseq_method, "ACK") != 0) &&
|
|
(strcmp(cseq_method, "CANCEL") != 0))
|
|
{
|
|
result = p_val->frame_number;
|
|
}
|
|
|
|
/* Does this look like a resent final response ? */
|
|
if ((line_type == STATUS_LINE) && (cseq_number == cseq_to_compare) &&
|
|
(p_val->transaction_state == final_response_seen) &&
|
|
(strcmp(cseq_method, p_val->method) == 0) &&
|
|
(stat_info->response_code >= 200) &&
|
|
(stat_info->response_code == p_val->response_code))
|
|
{
|
|
result = p_val->frame_number;
|
|
}
|
|
|
|
/* Update state for this entry */
|
|
p_val->cseq = cseq_number;
|
|
|
|
switch (line_type)
|
|
{
|
|
case REQUEST_LINE:
|
|
p_val->transaction_state = request_seen;
|
|
if (!result)
|
|
{
|
|
/* This frame is the original request */
|
|
p_val->frame_number = pinfo->fd->num;
|
|
}
|
|
break;
|
|
case STATUS_LINE:
|
|
if (stat_info->response_code >= 200)
|
|
{
|
|
p_val->response_code = stat_info->response_code;
|
|
p_val->transaction_state = final_response_seen;
|
|
if (!result)
|
|
{
|
|
/* This frame is the original response */
|
|
p_val->frame_number = pinfo->fd->num;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
p_val->transaction_state = provisional_response_seen;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
sip_frame_result = (sip_frame_result_value *)p_get_proto_data(pinfo->fd, proto_sip, 0);
|
|
if (sip_frame_result == NULL)
|
|
{
|
|
sip_frame_result = se_new0(sip_frame_result_value);
|
|
}
|
|
|
|
/* Store return value with this packet */
|
|
sip_frame_result->original_frame_num = result;
|
|
p_add_proto_data(pinfo->fd, proto_sip, 0, sip_frame_result);
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
/* Check to see if this packet is a resent request. Return value is the frame number
|
|
of the original frame this packet seems to be resending (0 = no resend). */
|
|
guint sip_find_request(packet_info *pinfo,
|
|
gchar *cseq_method,
|
|
gchar *call_id,
|
|
guchar cseq_number_set,
|
|
guint32 cseq_number,
|
|
guint32 *response_time)
|
|
{
|
|
guint32 cseq_to_compare = 0;
|
|
sip_hash_key key;
|
|
sip_hash_value *p_val = 0;
|
|
sip_frame_result_value *sip_frame_result = NULL;
|
|
guint result = 0;
|
|
gint seconds_between_packets;
|
|
gint nseconds_between_packets;
|
|
|
|
/* Only consider UDP */
|
|
if (pinfo->ptype != PT_UDP)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* Ignore error (usually ICMP) frames */
|
|
if (pinfo->flags.in_error_pkt)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* A broken packet may have no cseq number set. Ignore. */
|
|
if (!cseq_number_set)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* Return any answer stored from previous dissection */
|
|
if (pinfo->fd->flags.visited)
|
|
{
|
|
sip_frame_result = (sip_frame_result_value*)p_get_proto_data(pinfo->fd, proto_sip, 0);
|
|
if (sip_frame_result != NULL)
|
|
{
|
|
*response_time = sip_frame_result->response_time;
|
|
return sip_frame_result->response_request_frame_num;
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* No packet entry found, consult global hash table */
|
|
|
|
/* Prepare the key */
|
|
g_strlcpy(key.call_id, call_id, MAX_CALL_ID_SIZE);
|
|
|
|
/* Looking for matching request, so reverse addresses for this lookup */
|
|
SET_ADDRESS(&key.dest_address, pinfo->net_src.type, pinfo->net_src.len,
|
|
pinfo->net_src.data);
|
|
SET_ADDRESS(&key.source_address, pinfo->net_dst.type, pinfo->net_dst.len,
|
|
pinfo->net_dst.data);
|
|
key.dest_port = pinfo->srcport;
|
|
key.source_port = pinfo->destport;
|
|
|
|
/* Do the lookup */
|
|
p_val = (sip_hash_value*)g_hash_table_lookup(sip_hash, &key);
|
|
|
|
if (p_val)
|
|
{
|
|
/* Table entry found, we'll use its value for comparison */
|
|
cseq_to_compare = p_val->cseq;
|
|
}
|
|
else
|
|
{
|
|
/* We don't have the request */
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**************************************************/
|
|
/* Is it a response to a request that we've seen? */
|
|
if ((cseq_number == cseq_to_compare) &&
|
|
(p_val->transaction_state == request_seen) &&
|
|
(strcmp(cseq_method, p_val->method) == 0))
|
|
{
|
|
result = p_val->frame_number;
|
|
}
|
|
|
|
|
|
/* Store return value with this packet */
|
|
sip_frame_result = (sip_frame_result_value *)p_get_proto_data(pinfo->fd, proto_sip, 0);
|
|
if (sip_frame_result == NULL)
|
|
{
|
|
/* Allocate and set all values to zero */
|
|
sip_frame_result = se_new0(sip_frame_result_value);
|
|
}
|
|
|
|
sip_frame_result->response_request_frame_num = result;
|
|
|
|
/* Work out response time */
|
|
seconds_between_packets = (gint)
|
|
(pinfo->fd->abs_ts.secs - p_val->request_time.secs);
|
|
nseconds_between_packets =
|
|
pinfo->fd->abs_ts.nsecs - p_val->request_time.nsecs;
|
|
sip_frame_result->response_time = (seconds_between_packets*1000) +
|
|
(nseconds_between_packets / 1000000);
|
|
*response_time = sip_frame_result->response_time;
|
|
|
|
p_add_proto_data(pinfo->fd, proto_sip, 0, sip_frame_result);
|
|
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* Find the initial INVITE to calculate the total setup time
|
|
*/
|
|
guint sip_find_invite(packet_info *pinfo,
|
|
gchar *cseq_method _U_,
|
|
gchar *call_id,
|
|
guchar cseq_number_set,
|
|
guint32 cseq_number _U_,
|
|
guint32 *response_time)
|
|
{
|
|
#if 0
|
|
guint32 cseq_to_compare = 0;
|
|
#endif
|
|
sip_hash_key key;
|
|
sip_hash_value *p_val = 0;
|
|
sip_frame_result_value *sip_frame_result = NULL;
|
|
guint result = 0;
|
|
gint seconds_between_packets;
|
|
gint nseconds_between_packets;
|
|
|
|
/* Only consider UDP */
|
|
if (pinfo->ptype != PT_UDP)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* Ignore error (usually ICMP) frames */
|
|
if (pinfo->flags.in_error_pkt)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* A broken packet may have no cseq number set. Ignore. */
|
|
if (!cseq_number_set)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* Return any answer stored from previous dissection */
|
|
if (pinfo->fd->flags.visited)
|
|
{
|
|
sip_frame_result = (sip_frame_result_value*)p_get_proto_data(pinfo->fd, proto_sip, 0);
|
|
if (sip_frame_result != NULL)
|
|
{
|
|
*response_time = sip_frame_result->response_time;
|
|
return sip_frame_result->response_request_frame_num;
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/* No packet entry found, consult global hash table */
|
|
|
|
/* Prepare the key */
|
|
g_strlcpy(key.call_id, call_id, MAX_CALL_ID_SIZE);
|
|
|
|
/* Looking for matching INVITE */
|
|
SET_ADDRESS(&key.dest_address, pinfo->net_dst.type, pinfo->net_dst.len,
|
|
pinfo->net_dst.data);
|
|
SET_ADDRESS(&key.source_address, pinfo->net_src.type, pinfo->net_src.len,
|
|
pinfo->net_src.data);
|
|
key.dest_port = pinfo->destport;
|
|
key.source_port = pinfo->srcport;
|
|
|
|
/* Do the lookup */
|
|
p_val = (sip_hash_value*)g_hash_table_lookup(sip_hash, &key);
|
|
|
|
if (p_val)
|
|
{
|
|
#if 0
|
|
/* Table entry found, we'll use its value for comparison */
|
|
cseq_to_compare = p_val->cseq;
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
/* We don't have the request */
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**************************************************/
|
|
/* Is it a response to a request that we've seen? */
|
|
#if 0
|
|
if ((cseq_number == cseq_to_compare) &&
|
|
(p_val->transaction_state == request_seen) &&
|
|
(strcmp(cseq_method, p_val->method) == 0))
|
|
{
|
|
result = p_val->frame_number;
|
|
}
|
|
#endif
|
|
|
|
result = p_val->frame_number;
|
|
|
|
/* Store return value with this packet */
|
|
sip_frame_result = (sip_frame_result_value *)p_get_proto_data(pinfo->fd, proto_sip, 0);
|
|
if (sip_frame_result == NULL)
|
|
{
|
|
/* Allocate and set all values to zero */
|
|
sip_frame_result = se_new0(sip_frame_result_value);
|
|
}
|
|
|
|
sip_frame_result->response_request_frame_num = result;
|
|
|
|
/* Work out response time */
|
|
seconds_between_packets = (gint)
|
|
(pinfo->fd->abs_ts.secs - p_val->request_time.secs);
|
|
nseconds_between_packets =
|
|
pinfo->fd->abs_ts.nsecs - p_val->request_time.nsecs;
|
|
sip_frame_result->response_time = (seconds_between_packets*1000) +
|
|
(nseconds_between_packets / 1000000);
|
|
*response_time = sip_frame_result->response_time;
|
|
|
|
p_add_proto_data(pinfo->fd, proto_sip, 0, sip_frame_result);
|
|
|
|
return result;
|
|
}
|
|
static void
|
|
tcp_range_add_callback(guint32 port)
|
|
{
|
|
dissector_add_uint("tcp.port", port, sip_tcp_handle);
|
|
}
|
|
|
|
static void
|
|
tcp_range_delete_callback(guint32 port)
|
|
{
|
|
dissector_delete_uint("tcp.port", port, sip_tcp_handle);
|
|
}
|
|
|
|
/* Register the protocol with Wireshark */
|
|
void proto_register_sip(void)
|
|
{
|
|
|
|
/* Setup list of header fields */
|
|
static hf_register_info hf[] = {
|
|
|
|
{ &hf_sip_msg_hdr,
|
|
{ "Message Header", "sip.msg_hdr",
|
|
FT_STRING, BASE_NONE, NULL, 0,
|
|
"Message Header in SIP message", HFILL }
|
|
},
|
|
{ &hf_sip_Method,
|
|
{ "Method", "sip.Method",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"SIP Method", HFILL }
|
|
},
|
|
{ &hf_Request_Line,
|
|
{ "Request-Line", "sip.Request-Line",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"SIP Request-Line", HFILL }
|
|
},
|
|
{ &hf_sip_ruri,
|
|
{ "Request-URI", "sip.r-uri",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: SIP R-URI", HFILL }
|
|
},
|
|
{ &hf_sip_ruri_user,
|
|
{ "Request-URI User Part", "sip.r-uri.user",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: SIP R-URI User", HFILL }
|
|
},
|
|
{ &hf_sip_ruri_host,
|
|
{ "Request-URI Host Part", "sip.r-uri.host",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: SIP R-URI Host", HFILL }
|
|
},
|
|
{ &hf_sip_ruri_port,
|
|
{ "Request-URI Host Port", "sip.r-uri.port",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: SIP R-URI Port", HFILL }
|
|
},
|
|
{ &hf_sip_ruri_param,
|
|
{ "Request URI parameter", "sip.r-uri.param",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_sip_Status_Code,
|
|
{ "Status-Code", "sip.Status-Code",
|
|
FT_UINT32, BASE_DEC,NULL,0x0,
|
|
"SIP Status Code", HFILL }
|
|
},
|
|
{ &hf_sip_Status_Line,
|
|
{ "Status-Line", "sip.Status-Line",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"SIP Status-Line", HFILL }
|
|
},
|
|
{ &hf_sip_display,
|
|
{ "SIP Display info", "sip.display.info",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Display info", HFILL }
|
|
},
|
|
{ &hf_sip_to_addr,
|
|
{ "SIP to address", "sip.to.addr",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: To Address", HFILL }
|
|
},
|
|
{ &hf_sip_to_user,
|
|
{ "SIP to address User Part", "sip.to.user",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: To Address User", HFILL }
|
|
},
|
|
{ &hf_sip_to_host,
|
|
{ "SIP to address Host Part", "sip.to.host",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: To Address Host", HFILL }
|
|
},
|
|
{ &hf_sip_to_port,
|
|
{ "SIP to address Host Port", "sip.to.port",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: To Address Port", HFILL }
|
|
},
|
|
{ &hf_sip_to_param,
|
|
{ "SIP To URI parameter", "sip.to.param",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_sip_to_tag,
|
|
{ "SIP to tag", "sip.to.tag",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: to tag", HFILL }
|
|
},
|
|
{ &hf_sip_from_addr,
|
|
{ "SIP from address", "sip.from.addr",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: From Address", HFILL }
|
|
},
|
|
{ &hf_sip_from_user,
|
|
{ "SIP from address User Part", "sip.from.user",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: From Address User", HFILL }
|
|
},
|
|
{ &hf_sip_from_host,
|
|
{ "SIP from address Host Part", "sip.from.host",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: From Address Host", HFILL }
|
|
},
|
|
{ &hf_sip_from_port,
|
|
{ "SIP from address Host Port", "sip.from.port",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: From Address Port", HFILL }
|
|
},
|
|
{ &hf_sip_from_param,
|
|
{ "SIP From URI parameter", "sip.from.param",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_sip_from_tag,
|
|
{ "SIP from tag", "sip.from.tag",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: from tag", HFILL }
|
|
},
|
|
/* etxrab */
|
|
{ &hf_sip_curi,
|
|
{ "Contact URI", "sip.contact.uri",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: SIP C-URI", HFILL }
|
|
},
|
|
{ &hf_sip_curi_user,
|
|
{ "Contact URI User Part", "sip.contact.user",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: SIP C-URI User", HFILL }
|
|
},
|
|
{ &hf_sip_curi_host,
|
|
{ "Contact URI Host Part", "sip.contact.host",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: SIP C-URI Host", HFILL }
|
|
},
|
|
{ &hf_sip_curi_port,
|
|
{ "Contact URI Host Port", "sip.contact.port",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: SIP C-URI Port", HFILL }
|
|
},
|
|
{ &hf_sip_curi_param,
|
|
{ "Contact URI parameter", "sip.contact.param",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
/* etxjowa */
|
|
{ &hf_sip_route,
|
|
{ "Route URI", "sip.Route.uri",
|
|
FT_STRING, BASE_NONE,NULL,0x0,NULL,HFILL }
|
|
},
|
|
{ &hf_sip_route_user,
|
|
{ "Route Userinfo", "sip.Route.user",
|
|
FT_STRING, BASE_NONE,NULL,0x0,NULL,HFILL }
|
|
},
|
|
{ &hf_sip_route_host,
|
|
{ "Route Host Part", "sip.Route.host",
|
|
FT_STRING, BASE_NONE,NULL,0x0,NULL,HFILL }
|
|
},
|
|
{ &hf_sip_route_port,
|
|
{ "Route Host Port", "sip.Route.port",
|
|
FT_STRING, BASE_NONE,NULL,0x0,NULL,HFILL }
|
|
},
|
|
{ &hf_sip_route_param,
|
|
{ "Route URI parameter", "sip.Route.param",
|
|
FT_STRING, BASE_NONE,NULL,0x0,NULL,HFILL }
|
|
},
|
|
{ &hf_sip_record_route,
|
|
{ "Record-Route URI", "sip.Record-Route.uri",
|
|
FT_STRING, BASE_NONE,NULL,0x0,NULL,HFILL }
|
|
},
|
|
{ &hf_sip_record_route_user,
|
|
{ "Record-Route Userinfo", "sip.Record-Route.user",
|
|
FT_STRING, BASE_NONE,NULL,0x0,NULL,HFILL }
|
|
},
|
|
{ &hf_sip_record_route_host,
|
|
{ "Record-Route Host Part", "sip.Record-Route.host",
|
|
FT_STRING, BASE_NONE,NULL,0x0,NULL,HFILL }
|
|
},
|
|
{ &hf_sip_record_route_port,
|
|
{ "Record-Route Host Port", "sip.Record-Route.port",
|
|
FT_STRING, BASE_NONE,NULL,0x0,NULL,HFILL }
|
|
},
|
|
{ &hf_sip_record_route_param,
|
|
{ "Record-Route URI parameter", "sip.Record-Route.param",
|
|
FT_STRING, BASE_NONE,NULL,0x0,NULL,HFILL }
|
|
},
|
|
/* etxjowa end */
|
|
{ &hf_sip_contact_param,
|
|
{ "Contact parameter", "sip.contact.parameter",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: one contact parameter", HFILL }
|
|
},
|
|
{ &hf_sip_tag,
|
|
{ "SIP tag", "sip.tag",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: tag", HFILL }
|
|
},
|
|
{ &hf_sip_pai_addr,
|
|
{ "SIP PAI Address", "sip.pai.addr",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: P-Asserted-Identity Address", HFILL }
|
|
},
|
|
{ &hf_sip_pai_user,
|
|
{ "SIP PAI User Part", "sip.pai.user",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: P-Asserted-Identity User", HFILL }
|
|
},
|
|
{ &hf_sip_pai_host,
|
|
{ "SIP PAI Host Part", "sip.pai.host",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: P-Asserted-Identity Host", HFILL }
|
|
},
|
|
{ &hf_sip_pai_port,
|
|
{ "SIP PAI Host Port", "sip.pai.port",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: P-Asserted-Identity Port", HFILL }
|
|
},
|
|
{ &hf_sip_pai_param,
|
|
{ "SIP PAI URI parameter", "sip.pai.param",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_sip_pmiss_addr,
|
|
{ "SIP PMISS Address", "sip.pmiss.addr",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: Permission Missing Address", HFILL }
|
|
},
|
|
{ &hf_sip_pmiss_user,
|
|
{ "SIP PMISS User Part", "sip.pmiss.user",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: Permission Missing User", HFILL }
|
|
},
|
|
{ &hf_sip_pmiss_host,
|
|
{ "SIP PMISS Host Part", "sip.pmiss.host",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: Permission Missing Host", HFILL }
|
|
},
|
|
{ &hf_sip_pmiss_port,
|
|
{ "SIP PMISS Host Port", "sip.pmiss.port",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: Permission Missing Port", HFILL }
|
|
},
|
|
{ &hf_sip_pmiss_param,
|
|
{ "SIP PMISS URI parameter", "sip.pmiss.param",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
|
|
{ &hf_sip_ppi_addr,
|
|
{ "SIP PPI Address", "sip.ppi.addr",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: P-Preferred-Identity Address", HFILL }
|
|
},
|
|
{ &hf_sip_ppi_user,
|
|
{ "SIP PPI User Part", "sip.ppi.user",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: P-Preferred-Identity User", HFILL }
|
|
},
|
|
{ &hf_sip_ppi_host,
|
|
{ "SIP PPI Host Part", "sip.ppi.host",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: P-Preferred-Identity Host", HFILL }
|
|
},
|
|
{ &hf_sip_ppi_port,
|
|
{ "SIP PPI Host Port", "sip.ppi.port",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: P-Preferred-Identity Port", HFILL }
|
|
},
|
|
{ &hf_sip_ppi_param,
|
|
{ "SIP PPI URI parameter", "sip.ppi.param",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_sip_tc_addr,
|
|
{ "SIP TC Address", "sip.tc.addr",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: Trigger Consent Address", HFILL }
|
|
},
|
|
{ &hf_sip_tc_user,
|
|
{ "SIP TC User Part", "sip.tc.user",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: Trigger Consent User", HFILL }
|
|
},
|
|
{ &hf_sip_tc_host,
|
|
{ "SIP TC Host Part", "sip.tc.host",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: Trigger Consent Host", HFILL }
|
|
},
|
|
{ &hf_sip_tc_port,
|
|
{ "SIP TC Host Port", "sip.tc.port",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: Trigger Consent Port", HFILL }
|
|
},
|
|
{ &hf_sip_tc_param,
|
|
{ "SIP TC URI parameter", "sip.tc.param",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_sip_tc_turi,
|
|
{ "SIP TC Target URI", "sip.tc.target-uri",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: Trigger Consent Target URI", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_ACCEPT],
|
|
{ "Accept", "sip.Accept",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Accept Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_ACCEPT_CONTACT],
|
|
{ "Accept-Contact", "sip.Accept-Contact",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3841: Accept-Contact Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_ACCEPT_ENCODING],
|
|
{ "Accept-Encoding", "sip.Accept-Encoding",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3841: Accept-Encoding Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_ACCEPT_LANGUAGE],
|
|
{ "Accept-Language", "sip.Accept-Language",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Accept-Language Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_ACCEPT_RESOURCE_PRIORITY],
|
|
{ "Accept-Resource-Priority", "sip.Accept-Resource-Priority",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"Draft: Accept-Resource-Priority Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_ALERT_INFO],
|
|
{ "Alert-Info", "sip.Alert-Info",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Alert-Info Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_ALLOW],
|
|
{ "Allow", "sip.Allow",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Allow Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_ALLOW_EVENTS],
|
|
{ "Allow-Events", "sip.Allow-Events",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3265: Allow-Events Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_ANSWER_MODE],
|
|
{ "Answer-Mode", "sip.Answer-Mode",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 5373: Answer-Mode Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_AUTHENTICATION_INFO],
|
|
{ "Authentication-Info", "sip.Authentication-Info",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Authentication-Info Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_AUTHORIZATION],
|
|
{ "Authorization", "sip.Authorization",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Authorization Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_CALL_ID],
|
|
{ "Call-ID", "sip.Call-ID",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Call-ID Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_CALL_INFO],
|
|
{ "Call-Info", "sip.Call-Info",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Call-Info Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_CONTACT],
|
|
{ "Contact", "sip.Contact",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Contact Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_CONTENT_DISPOSITION],
|
|
{ "Content-Disposition", "sip.Content-Disposition",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Content-Disposition Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_CONTENT_ENCODING],
|
|
{ "Content-Encoding", "sip.Content-Encoding",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Content-Encoding Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_CONTENT_LANGUAGE],
|
|
{ "Content-Language", "sip.Content-Language",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Content-Language Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_CONTENT_LENGTH],
|
|
{ "Content-Length", "sip.Content-Length",
|
|
FT_UINT32, BASE_DEC,NULL,0x0,
|
|
"RFC 3261: Content-Length Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_CONTENT_TYPE],
|
|
{ "Content-Type", "sip.Content-Type",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Content-Type Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_CSEQ],
|
|
{ "CSeq", "sip.CSeq",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: CSeq Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_DATE],
|
|
{ "Date", "sip.Date",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Date Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_ERROR_INFO],
|
|
{ "Error-Info", "sip.Error-Info",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Error-Info Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_EVENT],
|
|
{ "Event", "sip.Event",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3265: Event Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_EXPIRES],
|
|
{ "Expires", "sip.Expires",
|
|
FT_UINT32, BASE_DEC,NULL,0x0,
|
|
"RFC 3261: Expires Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_FEATURE_CAPS],
|
|
{ "Feature-Caps", "sip.feature_caps",
|
|
FT_UINT32, BASE_DEC,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_header_array[POS_FLOW_TIMER],
|
|
{ "Flow-Timer", "sip.Flow-Timer",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 5626: Flow-Timer", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_FROM],
|
|
{ "From", "sip.From",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: From Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_GEOLOCATION],
|
|
{ "Geolocation", "sip.Geolocation",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_header_array[POS_GEOLOCATION_ERROR],
|
|
{ "Geolocation-Error", "sip.Geolocation",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_header_array[POS_GEOLOCATION_ROUTING],
|
|
{ "Geolocation-Routing", "sip.Geolocation_Routing",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_header_array[POS_HISTORY_INFO],
|
|
{ "History-Info", "sip.History-Info",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 4244: Request History Information", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_IDENTITY],
|
|
{ "Identity", "sip.Identity",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 4474: Request Identity", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_IDENTITY_INFO],
|
|
{ "Identity-info", "sip.Identity-info",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 4474: Request Identity-info", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_INFO_PKG],
|
|
{ "Info-Package", "sip.Info-Package",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_header_array[POS_IN_REPLY_TO],
|
|
{ "In-Reply-To", "sip.In-Reply-To",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: In-Reply-To Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_JOIN],
|
|
{ "Join", "sip.Join",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"Draft: Join Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_MAX_BREADTH],
|
|
{ "Max-Breadth", "sip.Max-Breadth",
|
|
FT_UINT32, BASE_DEC,NULL,0x0,
|
|
"RFC 5393: Max-Breadth Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_MAX_FORWARDS],
|
|
{ "Max-Forwards", "sip.Max-Forwards",
|
|
FT_UINT32, BASE_DEC,NULL,0x0,
|
|
"RFC 3261: Max-Forwards Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_MIME_VERSION],
|
|
{ "MIME-Version", "sip.MIME-Version",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: MIME-Version Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_MIN_EXPIRES],
|
|
{ "Min-Expires", "sip.Min-Expires",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Min-Expires Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_MIN_SE],
|
|
{ "Min-SE", "sip.Min-SE",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"Draft: Min-SE Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_ORGANIZATION],
|
|
{ "Organization", "sip.Organization",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Organization Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_P_ACCESS_NETWORK_INFO],
|
|
{ "P-Access-Network-Info", "sip.P-Access-Network-Info",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"P-Access-Network-Info Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_P_ANSWER_STATE],
|
|
{ "P-Answer-State", "sip.P-Answer-State",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 4964: P-Answer-State Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_P_ASSERTED_IDENTITY],
|
|
{ "P-Asserted-Identity", "sip.P-Asserted-Identity",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: P-Asserted-Identity Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_P_ASSERTED_SERV],
|
|
{ "P-Asserted-Service", "sip.P-Asserted-Service",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_header_array[POS_P_ASSOCIATED_URI],
|
|
{ "P-Associated-URI", "sip.P-Associated-URI",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3455: P-Associated-URI Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_P_CALLED_PARTY_ID],
|
|
{ "P-Called-Party-ID", "sip.P-Called-Party-ID",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3455: P-Called-Party-ID Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_P_CHARGING_FUNC_ADDRESSES],
|
|
{ "P-Charging-Function-Addresses","sip.P-Charging-Function-Addresses",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_P_CHARGING_VECTOR],
|
|
{ "P-Charging-Vector", "sip.P-Charging-Vector",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"P-Charging-Vector Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_P_DCS_TRACE_PARTY_ID],
|
|
{ "P-DCS-Trace-Party-ID", "sip.P-DCS-Trace-Party-ID",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"P-DCS-Trace-Party-ID Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_P_DCS_OSPS],
|
|
{ "P-DCS-OSPS", "sip.P-DCS-OSPS",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"P-DCS-OSPS Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_P_DCS_BILLING_INFO],
|
|
{ "P-DCS-Billing-Info", "sip.P-DCS-Billing-Info",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"P-DCS-Billing-Info Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_P_DCS_LAES],
|
|
{ "P-DCS-LAES", "sip.P-DCS-LAES",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"P-DCS-LAES Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_P_DCS_REDIRECT],
|
|
{ "P-DCS-Redirect", "sip.P-DCS-Redirect",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"P-DCS-Redirect Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_P_EARLY_MEDIA],
|
|
{ "P-Early-Media", "sip.P-Early-Media",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"P-Early-Media Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_P_MEDIA_AUTHORIZATION],
|
|
{ "P-Media-Authorization", "sip.P-Media-Authorization",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3313: P-Media-Authorization Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_P_PREFERRED_IDENTITY],
|
|
{ "P-Preferred-Identity", "sip.P-Preferred-Identity",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3325: P-Preferred-Identity Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_P_PREFERRED_SERV],
|
|
{ "P-Preferred-Service", "sip.P-Preferred-Service",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_header_array[POS_P_PROFILE_KEY],
|
|
{ "P-Profile-Key", "sip.P-Profile-Key",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"P-Profile-Key Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_P_REFUSED_URI_LST],
|
|
{ "P-Refused-URI-List", "sip.P-Refused-URI-List",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"P-Refused-URI-List Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_P_SERVED_USER],
|
|
{ "P-Served-User", "sip.P-Served-User",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_header_array[POS_P_USER_DATABASE],
|
|
{ "P-User-Database", "sip.P-User-Database",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"P-User-Database Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_P_VISITED_NETWORK_ID],
|
|
{ "P-Visited-Network-ID", "sip.P-Visited-Network-ID",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3455: P-Visited-Network-ID Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_PATH],
|
|
{ "Path", "sip.Path",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3327: Path Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_PERMISSION_MISSING],
|
|
{ "Permission-Missing", "sip.Permission-Missing",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 5360: Permission Missing Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_POLICY_CONTACT],
|
|
{ "Policy-Contact", "sip.Policy_Contact",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_header_array[POS_POLICY_ID],
|
|
{ "Policy-ID", "sip.Policy_ID",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_header_array[POS_PRIORITY],
|
|
{ "Priority", "sip.Priority",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Priority Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_PRIV_ANSWER_MODE],
|
|
{ "Priv-Answer-mode", "sip.Priv-Answer-mode",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_header_array[POS_PRIVACY],
|
|
{ "Privacy", "sip.Privacy",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"Privacy Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_PROXY_AUTHENTICATE],
|
|
{ "Proxy-Authenticate", "sip.Proxy-Authenticate",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Proxy-Authenticate Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_PROXY_AUTHORIZATION],
|
|
{ "Proxy-Authorization", "sip.Proxy-Authorization",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Proxy-Authorization Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_PROXY_REQUIRE],
|
|
{ "Proxy-Require", "sip.Proxy-Require",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Proxy-Require Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_RACK],
|
|
{ "RAck", "sip.RAck",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3262: RAck Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_REASON],
|
|
{ "Reason", "sip.Reason",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3326 Reason Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_REASON_PHRASE],
|
|
{ "Reason-Phrase", "sip.Reason-Phrase",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_header_array[POS_RECORD_ROUTE],
|
|
{ "Record-Route", "sip.Record-Route",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Record-Route Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_RECV_INFO],
|
|
{ "Recv-Info", "sip.Recv-Info",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_header_array[POS_REFER_SUB],
|
|
{ "Refer-Sub", "sip.Refer-Sub",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 4488: Refer-Sub Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_REFER_TO],
|
|
{ "Refer-To", "sip.Refer-To",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3515: Refer-To Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_REFERED_BY],
|
|
{ "Refered By", "sip.Refered-by",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3892: Refered-by Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_REJECT_CONTACT],
|
|
{ "Reject-Contact", "sip.Reject-Contact",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3841: Reject-Contact Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_REPLACES],
|
|
{ "Replaces", "sip.Replaces",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3891: Replaces Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_REPLY_TO],
|
|
{ "Reply-To", "sip.Reply-To",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Reply-To Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_REQUEST_DISPOSITION],
|
|
{ "Request-Disposition", "sip.Request-Disposition",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3841: Request-Disposition Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_REQUIRE],
|
|
{ "Require", "sip.Require",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Require Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_RESOURCE_PRIORITY],
|
|
{ "Resource-Priority", "sip.Resource-Priority",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"Draft: Resource-Priority Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_RETRY_AFTER],
|
|
{ "Retry-After", "sip.Retry-After",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Retry-After Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_ROUTE],
|
|
{ "Route", "sip.Route",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Route Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_RSEQ],
|
|
{ "RSeq", "sip.RSeq",
|
|
FT_UINT32, BASE_DEC,NULL,0x0,
|
|
"RFC 3262: RSeq Header", HFILL }
|
|
},
|
|
{ &hf_header_array[ POS_SECURITY_CLIENT],
|
|
{ "Security-Client", "sip.Security-Client",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3329 Security-Client Header", HFILL }
|
|
},
|
|
{ &hf_header_array[ POS_SECURITY_SERVER],
|
|
{ "Security-Server", "sip.Security-Server",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3329 Security-Server Header", HFILL }
|
|
},
|
|
{ &hf_header_array[ POS_SECURITY_VERIFY],
|
|
{ "Security-Verify", "sip.Security-Verify",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3329 Security-Verify Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_SERVER],
|
|
{ "Server", "sip.Server",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Server Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_SERVICE_ROUTE],
|
|
{ "Service-Route", "sip.Service-Route",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3608: Service-Route Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_SESSION_EXPIRES],
|
|
{ "Session-Expires", "sip.Session-Expires",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 4028: Session-Expires Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_SIP_ETAG],
|
|
{ "ETag", "sip.ETag",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3903: SIP-ETag Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_SIP_IF_MATCH],
|
|
{ "If_Match", "sip.If_Match",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3903: SIP-If-Match Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_SUBJECT],
|
|
{ "Subject", "sip.Subject",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Subject Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_SUBSCRIPTION_STATE],
|
|
{ "Subscription-State", "sip.Subscription-State",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3265: Subscription-State Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_SUPPORTED],
|
|
{ "Supported", "sip.Supported",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Supported Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_SUPPRESS_IF_MATCH],
|
|
{ "Suppress-If-Match", "sip.Suppress_If_Match",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_header_array[POS_TARGET_DIALOG],
|
|
{ "Target-Dialog", "sip.Target-Dialog",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 4538: Target-Dialog Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_TIMESTAMP],
|
|
{ "Timestamp", "sip.Timestamp",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Timestamp Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_TO],
|
|
{ "To", "sip.To",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: To Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_TRIGGER_CONSENT],
|
|
{ "Trigger-Consent", "sip.Trigger-Consent",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 5380: Trigger Consent", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_UNSUPPORTED],
|
|
{ "Unsupported", "sip.Unsupported",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Unsupported Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_USER_AGENT],
|
|
{ "User-Agent", "sip.User-Agent",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: User-Agent Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_VIA],
|
|
{ "Via", "sip.Via",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Via Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_WARNING],
|
|
{ "Warning", "sip.Warning",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: Warning Header", HFILL }
|
|
},
|
|
|
|
{ &hf_header_array[POS_WWW_AUTHENTICATE],
|
|
{ "WWW-Authenticate", "sip.WWW-Authenticate",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 3261: WWW-Authenticate Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_DIVERSION],
|
|
{ "Diversion", "sip.Diversion",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"RFC 5806: Diversion Header", HFILL }
|
|
},
|
|
{ &hf_header_array[POS_USER_TO_USER],
|
|
{ "User-to-User", "sip.uui",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
"draft-johnston-sipping-cc-uui-09: User-to-User header", HFILL }
|
|
},
|
|
{ &hf_sip_resend,
|
|
{ "Resent Packet", "sip.resend",
|
|
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_sip_original_frame,
|
|
{ "Suspected resend of frame", "sip.resend-original",
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
|
|
"Original transmission of frame", HFILL}
|
|
},
|
|
{ &hf_sip_matching_request_frame,
|
|
{ "Request Frame", "sip.response-request",
|
|
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_sip_response_time,
|
|
{ "Response Time (ms)", "sip.response-time",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"Response time since original request (in milliseconds)", HFILL}
|
|
},
|
|
{ &hf_sip_release_time,
|
|
{ "Release Time (ms)", "sip.release-time",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"release time since original BYE (in milliseconds)", HFILL}
|
|
},
|
|
{ &hf_sip_auth,
|
|
{ "Authentication", "sip.auth",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication", HFILL}
|
|
},
|
|
{ &hf_sip_auth_scheme,
|
|
{ "Authentication Scheme", "sip.auth.scheme",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Scheme", HFILL}
|
|
},
|
|
{ &hf_sip_auth_digest_response,
|
|
{ "Digest Authentication Response", "sip.auth.digest.response",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Digest Authentication Response Value", HFILL}
|
|
},
|
|
{ &hf_sip_auth_nc,
|
|
{ "Nonce Count", "sip.auth.nc",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Nonce count", HFILL}
|
|
},
|
|
{ &hf_sip_auth_username,
|
|
{ "Username", "sip.auth.username",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Username", HFILL}
|
|
},
|
|
{ &hf_sip_auth_realm,
|
|
{ "Realm", "sip.auth.realm",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Realm", HFILL}
|
|
},
|
|
{ &hf_sip_auth_nonce,
|
|
{ "Nonce Value", "sip.auth.nonce",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Nonce", HFILL}
|
|
},
|
|
{ &hf_sip_auth_algorithm,
|
|
{ "Algorithm", "sip.auth.algorithm",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Algorithm", HFILL}
|
|
},
|
|
{ &hf_sip_auth_opaque,
|
|
{ "Opaque Value", "sip.auth.opaque",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Opaque value", HFILL}
|
|
},
|
|
{ &hf_sip_auth_qop,
|
|
{ "QOP", "sip.auth.qop",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication QOP", HFILL}
|
|
},
|
|
{ &hf_sip_auth_cnonce,
|
|
{ "CNonce Value", "sip.auth.cnonce",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Client Nonce", HFILL}
|
|
},
|
|
{ &hf_sip_auth_uri,
|
|
{ "Authentication URI", "sip.auth.uri",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication URI", HFILL}
|
|
},
|
|
{ &hf_sip_auth_domain,
|
|
{ "Authentication Domain", "sip.auth.domain",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Domain", HFILL}
|
|
},
|
|
{ &hf_sip_auth_stale,
|
|
{ "Stale Flag", "sip.auth.stale",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Stale Flag", HFILL}
|
|
},
|
|
{ &hf_sip_auth_auts,
|
|
{ "Authentication Token", "sip.auth.auts",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Token", HFILL}
|
|
},
|
|
{ &hf_sip_auth_rspauth,
|
|
{ "Response auth", "sip.auth.rspauth",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Response auth", HFILL}
|
|
},
|
|
{ &hf_sip_auth_nextnonce,
|
|
{ "Next Nonce", "sip.auth.nextnonce",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Next Nonce", HFILL}
|
|
},
|
|
{ &hf_sip_auth_ik,
|
|
{ "Integrity Key", "sip.auth.ik",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Integrity Key", HFILL}
|
|
},
|
|
{ &hf_sip_auth_ck,
|
|
{ "Cyphering Key", "sip.auth.ck",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Authentication Cyphering Key", HFILL}
|
|
},
|
|
{ &hf_sip_cseq_seq_no,
|
|
{ "Sequence Number", "sip.CSeq.seq",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"CSeq header sequence number", HFILL}
|
|
},
|
|
{ &hf_sip_cseq_method,
|
|
{ "Method", "sip.CSeq.method",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"CSeq header method", HFILL}
|
|
},
|
|
{ &hf_sip_via_transport,
|
|
{ "Transport", "sip.Via.transport",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Via header Transport", HFILL}
|
|
},
|
|
{ &hf_sip_via_sent_by_address,
|
|
{ "Sent-by Address", "sip.Via.sent-by.address",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Via header Sent-by Address", HFILL}
|
|
},
|
|
{ &hf_sip_via_sent_by_port,
|
|
{ "Sent-by port", "sip.Via.sent-by.port",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Via header Sent-by Port", HFILL}
|
|
},
|
|
{ &hf_sip_via_branch,
|
|
{ "Branch", "sip.Via.branch",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Via Branch", HFILL},
|
|
},
|
|
{ &hf_sip_via_maddr,
|
|
{ "Maddr", "sip.Via.maddr",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Via Maddr", HFILL},
|
|
},
|
|
{ &hf_sip_via_rport,
|
|
{ "RPort", "sip.Via.rport",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Via RPort", HFILL},
|
|
},
|
|
{ &hf_sip_via_received,
|
|
{ "Received", "sip.Via.received",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Via Received", HFILL},
|
|
},
|
|
{ &hf_sip_via_ttl,
|
|
{ "TTL", "sip.Via.ttl",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Via TTL", HFILL}
|
|
},
|
|
{ &hf_sip_via_comp,
|
|
{ "Comp", "sip.Via.comp",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Via comp", HFILL}
|
|
},
|
|
{ &hf_sip_via_sigcomp_id,
|
|
{ "Sigcomp identifier", "sip.Via.sigcomp-id",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"SIP Via sigcomp identifier", HFILL}
|
|
},
|
|
{ &hf_sip_rack_rseq_no,
|
|
{ "RSeq Sequence Number", "sip.RAck.RSeq.seq",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"RAck RSeq header sequence number (from prov response)", HFILL}
|
|
},
|
|
{ &hf_sip_rack_cseq_no,
|
|
{ "CSeq Sequence Number", "sip.RAck.CSeq.seq",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"RAck CSeq header sequence number (from prov response)", HFILL}
|
|
},
|
|
{ &hf_sip_rack_cseq_method,
|
|
{ "CSeq Method", "sip.RAck.CSeq.method",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"RAck CSeq header method (from prov response)", HFILL}
|
|
},
|
|
{ &hf_sip_msg_body,
|
|
{ "Message Body", "sip.msg_body",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"Message Body in SIP message", HFILL }
|
|
}
|
|
};
|
|
|
|
/* raw_sip header field(s) */
|
|
static hf_register_info raw_hf[] = {
|
|
|
|
{ &hf_sip_raw_line,
|
|
{ "Raw SIP Line", "raw_sip.line",
|
|
FT_STRING, BASE_NONE,NULL,0x0,
|
|
NULL, HFILL }
|
|
}};
|
|
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_sip,
|
|
&ett_sip_reqresp,
|
|
&ett_sip_hdr,
|
|
&ett_sip_ext_hdr,
|
|
&ett_sip_element,
|
|
&ett_sip_hist,
|
|
&ett_sip_uri,
|
|
&ett_sip_contact_item,
|
|
&ett_sip_message_body,
|
|
&ett_sip_cseq,
|
|
&ett_sip_via,
|
|
&ett_sip_reason,
|
|
&ett_sip_rack,
|
|
&ett_sip_record_route,
|
|
&ett_sip_route,
|
|
&ett_sip_ruri,
|
|
&ett_sip_pai_uri,
|
|
&ett_sip_pmiss_uri,
|
|
&ett_sip_ppi_uri,
|
|
&ett_sip_tc_uri,
|
|
&ett_sip_to_uri,
|
|
&ett_sip_from_uri,
|
|
&ett_sip_curi
|
|
};
|
|
static gint *ett_raw[] = {
|
|
&ett_raw_text,
|
|
};
|
|
|
|
module_t *sip_module;
|
|
|
|
/* Register the protocol name and description */
|
|
proto_sip = proto_register_protocol("Session Initiation Protocol",
|
|
"SIP", "sip");
|
|
proto_raw_sip = proto_register_protocol("Session Initiation Protocol (SIP as raw text)",
|
|
"Raw_SIP", "raw_sip");
|
|
new_register_dissector("sip", dissect_sip, proto_sip);
|
|
register_dissector("sip.tcp", dissect_sip_tcp, proto_sip);
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array(proto_sip, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
proto_register_subtree_array(ett_raw, array_length(ett_raw));
|
|
|
|
/* Register raw_sip field(s) */
|
|
proto_register_field_array(proto_raw_sip, raw_hf, array_length(raw_hf));
|
|
|
|
sip_module = prefs_register_protocol(proto_sip, proto_reg_handoff_sip);
|
|
range_convert_str(&global_sip_tcp_port_range, DEFAULT_SIP_PORT_RANGE, MAX_UDP_PORT);
|
|
|
|
|
|
prefs_register_range_preference(sip_module, "tcp.ports", "SIP TCP ports",
|
|
"TCP ports to be decoded as SIP (default: "
|
|
DEFAULT_SIP_PORT_RANGE ")",
|
|
&global_sip_tcp_port_range, MAX_UDP_PORT);
|
|
|
|
prefs_register_uint_preference(sip_module, "tls.port",
|
|
"SIP TLS Port",
|
|
"SIP Server TLS Port",
|
|
10, &sip_tls_port);
|
|
|
|
prefs_register_bool_preference(sip_module, "display_raw_text",
|
|
"Display raw text for SIP message",
|
|
"Specifies that the raw text of the "
|
|
"SIP message should be displayed "
|
|
"in addition to the dissection tree",
|
|
&global_sip_raw_text);
|
|
prefs_register_bool_preference(sip_module, "display_raw_text_without_crlf",
|
|
"Don't show '\\r\\n' in raw SIP messages",
|
|
"If the raw text of the SIP message "
|
|
"is displayed, the trailing carriage "
|
|
"return and line feed are not shown",
|
|
&global_sip_raw_text_without_crlf);
|
|
prefs_register_bool_preference(sip_module, "strict_sip_version",
|
|
"Enforce strict SIP version check (" SIP2_HDR ")",
|
|
"If enabled, only " SIP2_HDR " traffic will be dissected as SIP. "
|
|
"Disable it to allow SIP traffic with a different version "
|
|
"to be dissected as SIP.",
|
|
&strict_sip_version);
|
|
prefs_register_bool_preference(sip_module, "desegment_headers",
|
|
"Reassemble SIP headers spanning multiple TCP segments",
|
|
"Whether the SIP dissector should reassemble headers "
|
|
"of a request spanning multiple TCP segments. "
|
|
"To use this option, you must also enable "
|
|
"\"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
|
|
&sip_desegment_headers);
|
|
prefs_register_bool_preference(sip_module, "desegment_body",
|
|
"Reassemble SIP bodies spanning multiple TCP segments",
|
|
"Whether the SIP dissector should use the "
|
|
"\"Content-length:\" value, if present, to reassemble "
|
|
"the body of a request spanning multiple TCP segments, "
|
|
"and reassemble chunked data spanning multiple TCP segments. "
|
|
"To use this option, you must also enable "
|
|
"\"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
|
|
&sip_desegment_body);
|
|
prefs_register_bool_preference(sip_module, "retrans_the_same_sport",
|
|
"Retransmissions always use the same source port",
|
|
"Whether retransmissions are detected coming from the same source port only.",
|
|
&sip_retrans_the_same_sport);
|
|
|
|
prefs_register_obsolete_preference(sip_module, "tcp.port");
|
|
|
|
register_init_routine(&sip_init_protocol);
|
|
register_heur_dissector_list("sip", &heur_subdissector_list);
|
|
/* Register for tapping */
|
|
sip_tap = register_tap("sip");
|
|
|
|
ext_hdr_subdissector_table = register_dissector_table("sip.hdr", "SIP Extension header", FT_STRING, BASE_NONE);
|
|
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_sip(void)
|
|
{
|
|
static range_t *sip_tcp_port_range;
|
|
|
|
static guint saved_sip_tls_port;
|
|
static gboolean sip_prefs_initialized = FALSE;
|
|
|
|
if (!sip_prefs_initialized) {
|
|
dissector_handle_t sip_handle;
|
|
sip_handle = find_dissector("sip");
|
|
sip_tcp_handle = find_dissector("sip.tcp");
|
|
sigcomp_handle = find_dissector("sigcomp");
|
|
sip_diag_handle = find_dissector("sip.diagnostic");
|
|
/* SIP content type and internet media type used by other dissectors are the same */
|
|
media_type_dissector_table = find_dissector_table("media_type");
|
|
|
|
dissector_add_uint("udp.port", UDP_PORT_SIP, sip_handle);
|
|
dissector_add_string("media_type", "message/sip", sip_handle);
|
|
|
|
heur_dissector_add("udp", dissect_sip_heur, proto_sip);
|
|
heur_dissector_add("tcp", dissect_sip_tcp_heur, proto_sip);
|
|
heur_dissector_add("sctp", dissect_sip_heur, proto_sip);
|
|
heur_dissector_add("stun", dissect_sip_heur, proto_sip);
|
|
sip_prefs_initialized = TRUE;
|
|
} else {
|
|
range_foreach(sip_tcp_port_range, tcp_range_delete_callback);
|
|
g_free(sip_tcp_port_range);
|
|
ssl_dissector_delete(saved_sip_tls_port, "sip.tcp", TRUE);
|
|
}
|
|
/* Set our port number for future use */
|
|
sip_tcp_port_range = range_copy(global_sip_tcp_port_range);
|
|
range_foreach(sip_tcp_port_range, tcp_range_add_callback);
|
|
saved_sip_tls_port = sip_tls_port;
|
|
ssl_dissector_add(saved_sip_tls_port, "sip.tcp", TRUE);
|
|
|
|
exported_pdu_tap = find_tap_id("export_pdu");
|
|
}
|