/* packet-ipsi-ctl.c * Routines for Avaya IPSI Control packet disassembly * Traffic is encapsulated Avaya proprietary CCMS * (Control Channel Message Set) between PCD and SIM * * Copyright 2008, Randy McEoin * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "config.h" #include void proto_register_ipsictl(void); void proto_reg_handoff_ipsictl(void); #define IPSICTL_PORT 5010 #define IPSICTL_PDU_MAGIC 0x0300 static int proto_ipsictl = -1; static int hf_ipsictl_pdu = -1; static int hf_ipsictl_magic = -1; static int hf_ipsictl_length = -1; static int hf_ipsictl_type = -1; static int hf_ipsictl_sequence = -1; static int hf_ipsictl_field1 = -1; static int hf_ipsictl_data = -1; static gint ett_ipsictl = -1; static gint ett_ipsictl_pdu = -1; static int dissect_ipsictl(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { proto_tree *ipsictl_tree; proto_tree *pdu_tree; proto_item *ti; int offset = 0; int loffset = 0; int llength = 0; int remaining_length; guint16 magic; guint16 length; guint16 type=0; guint16 sequence=0; int first_sequence=-1; int last_sequence=-1; guint16 field1=0; guint16 pdu=0; int haspdus=0; remaining_length=tvb_reported_length_remaining(tvb, offset); ti = proto_tree_add_item(tree, proto_ipsictl, tvb, offset, remaining_length, ENC_NA); ipsictl_tree = proto_item_add_subtree(ti, ett_ipsictl); magic = tvb_get_ntohs(tvb, offset); if (magic == IPSICTL_PDU_MAGIC) { haspdus=1; } while (haspdus && ((remaining_length=tvb_reported_length_remaining(tvb, offset)) > 6)) { loffset = offset; magic = tvb_get_ntohs(tvb, loffset); loffset+=2; length = tvb_get_ntohs(tvb, loffset); loffset+=2; llength=length; remaining_length-=4; if (remaining_length>=2) { type = tvb_get_ntohs(tvb, loffset); loffset+=2; remaining_length-=2; llength-=2; } if (remaining_length>=2) { sequence = tvb_get_ntohs(tvb, loffset); loffset+=2; remaining_length-=2; llength-=2; if (first_sequence==-1) { first_sequence=sequence; }else{ last_sequence=sequence; } } if (remaining_length>=2) { field1 = tvb_get_ntohs(tvb, loffset); llength-=2; } ti = proto_tree_add_uint(ipsictl_tree, hf_ipsictl_pdu, tvb, offset, (length+4), pdu); pdu_tree = proto_item_add_subtree(ti, ett_ipsictl_pdu); loffset=offset; remaining_length=tvb_reported_length_remaining(tvb, offset); if (tree) { proto_tree_add_uint(pdu_tree, hf_ipsictl_magic, tvb, loffset, 2, magic); } loffset+=2; remaining_length-=2; if (tree) { proto_tree_add_uint(pdu_tree, hf_ipsictl_length, tvb, loffset, 2, length); } loffset+=2; remaining_length-=2; if (remaining_length>=2) { if (tree) { proto_tree_add_uint(pdu_tree, hf_ipsictl_type, tvb, loffset, 2, type); } loffset+=2; remaining_length-=2; } if (remaining_length>=2) { if (tree) { proto_tree_add_uint(pdu_tree, hf_ipsictl_sequence, tvb, loffset, 2, sequence); } loffset+=2; remaining_length-=2; } if (remaining_length>=2) { if (tree) { proto_tree_add_uint(pdu_tree, hf_ipsictl_field1, tvb, loffset, 2, field1); } loffset+=2; remaining_length-=2; } if (remaining_length>=2) { if (tree) { proto_tree_add_item(pdu_tree, hf_ipsictl_data, tvb, loffset, llength, ENC_NA); } loffset+=llength; } offset=loffset; pdu++; } if (!haspdus) { proto_tree_add_item(ipsictl_tree, hf_ipsictl_data, tvb, offset, -1, ENC_NA); } col_set_str(pinfo->cinfo, COL_PROTOCOL, "IPSICTL"); if (haspdus) { if (last_sequence==-1) { col_add_fstr(pinfo->cinfo, COL_INFO, "PDUS=%d, Seq=0x%04x", pdu,first_sequence); }else{ col_add_fstr(pinfo->cinfo, COL_INFO, "PDUS=%d, Seq=0x%04x-0x%04x", pdu,first_sequence,last_sequence); } }else{ col_set_str(pinfo->cinfo, COL_INFO, "Initialization"); } return tvb_captured_length(tvb); } /* dissect_ipsictl */ void proto_register_ipsictl(void) { static hf_register_info hf[] = { { &hf_ipsictl_pdu, { "PDU", "ipsictl.pdu", FT_UINT16, BASE_DEC, NULL, 0x0, "IPSICTL PDU", HFILL }}, { &hf_ipsictl_magic, { "Magic", "ipsictl.magic", FT_UINT16, BASE_HEX, NULL, 0x0, "IPSICTL Magic", HFILL }}, { &hf_ipsictl_length, { "Length", "ipsictl.length", FT_UINT16, BASE_HEX, NULL, 0x0, "IPSICTL Length", HFILL }}, { &hf_ipsictl_type, { "Type", "ipsictl.type", FT_UINT16, BASE_HEX, NULL, 0x0, "IPSICTL Type", HFILL }}, { &hf_ipsictl_sequence, { "Sequence", "ipsictl.sequence", FT_UINT16, BASE_HEX, NULL, 0x0, "IPSICTL Sequence", HFILL }}, { &hf_ipsictl_field1, { "Field1", "ipsictl.field1", FT_UINT16, BASE_HEX, NULL, 0x0, "IPSICTL Field1", HFILL }}, { &hf_ipsictl_data, { "Data", "ipsictl.data", FT_BYTES, BASE_NONE, NULL, 0x0, "IPSICTL data", HFILL }}, }; static gint *ett[] = { &ett_ipsictl, &ett_ipsictl_pdu }; proto_ipsictl = proto_register_protocol("IPSICTL", "IPSICTL", "ipsictl"); proto_register_field_array(proto_ipsictl, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); } void proto_reg_handoff_ipsictl(void) { dissector_handle_t ipsictl_handle = NULL; ipsictl_handle = create_dissector_handle(dissect_ipsictl, proto_ipsictl); dissector_add_uint("tcp.port", IPSICTL_PORT, ipsictl_handle); } /* * Editor modelines - http://www.wireshark.org/tools/modelines.html * * Local Variables: * c-basic-offset: 2 * tab-width: 8 * indent-tabs-mode: nil * End: * * ex: set shiftwidth=2 tabstop=8 expandtab: * :indentSize=2:tabSize=8:noTabs=true: */